diff --git a/clients/android/app/src/main/java/org/camlistore/Preferences.java b/clients/android/app/src/main/java/org/camlistore/Preferences.java
index 00d70b785..e3dec7adb 100644
--- a/clients/android/app/src/main/java/org/camlistore/Preferences.java
+++ b/clients/android/app/src/main/java/org/camlistore/Preferences.java
@@ -34,7 +34,6 @@ public final class Preferences {
 
     public static final String HOST = "camli.host";
     // TODO(mpl): list instead of single string later? seems overkill for now.
-    public static final String TRUSTED_CERT = "camli.trusted_cert";
     public static final String USERNAME = "camli.username";
     public static final String PASSWORD = "camli.password";
     public static final String AUTO = "camli.auto";
@@ -126,10 +125,6 @@ public final class Preferences {
         return new HostPort(mSP.getString(Preferences.HOST, ""));
     }
 
-    public String trustedCert() {
-        return mSP.getString(TRUSTED_CERT, "").toLowerCase();
-    }
-
     public void setDevIP(String value) {
         mSP.edit().putString(DEV_IP, value).apply();
     }
diff --git a/clients/android/app/src/main/java/org/camlistore/SettingsActivity.java b/clients/android/app/src/main/java/org/camlistore/SettingsActivity.java
index 1c146677f..7a869be1f 100644
--- a/clients/android/app/src/main/java/org/camlistore/SettingsActivity.java
+++ b/clients/android/app/src/main/java/org/camlistore/SettingsActivity.java
@@ -52,7 +52,6 @@ public class SettingsActivity extends PreferenceActivity {
     private IUploadService mServiceStub = null;
 
     private EditTextPreference hostPref;
-    private EditTextPreference trustedCertPref;
     private EditTextPreference usernamePref;
     private EditTextPreference passwordPref;
     private EditTextPreference devIPPref;
@@ -83,7 +82,6 @@ public class SettingsActivity extends PreferenceActivity {
 
         Map<CharSequence, String> m = new HashMap<CharSequence, String>();
         m.put(Preferences.HOST, "server");
-        m.put(Preferences.TRUSTED_CERT, "certFingerprint");
         m.put(Preferences.USERNAME, "username");
         m.put(Preferences.PASSWORD, "password");
         m.put(Preferences.AUTO, "autoUpload");
@@ -94,7 +92,6 @@ public class SettingsActivity extends PreferenceActivity {
         addPreferencesFromResource(R.xml.preferences);
 
         hostPref = (EditTextPreference) findPreference(Preferences.HOST);
-        trustedCertPref = (EditTextPreference) findPreference(Preferences.TRUSTED_CERT);
         usernamePref = (EditTextPreference) findPreference(Preferences.USERNAME);
         passwordPref = (EditTextPreference) findPreference(Preferences.PASSWORD);
         autoPref = (CheckBoxPreference) findPreference(Preferences.AUTO);
@@ -121,8 +118,6 @@ public class SettingsActivity extends PreferenceActivity {
                         : null;
                 if (pref == hostPref) {
                     updateHostSummary(newStr);
-                } else if (pref == trustedCertPref) {
-                    updateTrustedCertSummary(newStr);
                 } else if (pref == passwordPref) {
                     updatePasswordSummary(newStr);
                 } else if (pref == usernamePref) {
@@ -137,7 +132,6 @@ public class SettingsActivity extends PreferenceActivity {
             }
         };
         hostPref.setOnPreferenceChangeListener(onChange);
-        trustedCertPref.setOnPreferenceChangeListener(onChange);
         passwordPref.setOnPreferenceChangeListener(onChange);
         usernamePref.setOnPreferenceChangeListener(onChange);
         maxCacheSizePref.setOnPreferenceChangeListener(onChange);
@@ -195,7 +189,6 @@ public class SettingsActivity extends PreferenceActivity {
             @Override
             public void onClick(DialogInterface dialog, int id) {
                 hostPref.setText(uri.getQueryParameter("server"));
-                trustedCertPref.setText(uri.getQueryParameter("certFingerprint"));
                 usernamePref.setText(uri.getQueryParameter("username"));
                 String auto = uri.getQueryParameter("autoUpload");
                 autoPref.setChecked(auto != null && auto.equals("1"));
@@ -256,7 +249,6 @@ public class SettingsActivity extends PreferenceActivity {
 
     private void updatePreferenceSummaries() {
         updateHostSummary(hostPref.getText());
-        updateTrustedCertSummary(trustedCertPref.getText());
         updatePasswordSummary(passwordPref.getText());
         updateAutoOpts(autoPref.isChecked());
         updateMaxCacheSizeSummary(maxCacheSizePref.getText());
@@ -282,7 +274,6 @@ public class SettingsActivity extends PreferenceActivity {
         }
         boolean enabled = TextUtils.isEmpty(value);
         hostPref.setEnabled(enabled);
-        trustedCertPref.setEnabled(enabled);
         usernamePref.setEnabled(enabled);
         passwordPref.setEnabled(enabled);
         if (!enabled) {
@@ -317,14 +308,6 @@ public class SettingsActivity extends PreferenceActivity {
         }
     }
 
-    private void updateTrustedCertSummary(String value) {
-        if (value != null && value.length() > 0) {
-            trustedCertPref.setSummary(value);
-        } else {
-            trustedCertPref.setSummary("<unset; optional 20 hex SHA-256 prefix>");
-        }
-    }
-
     private void updateAutoOpts(boolean checked) {
         autoOpts.setEnabled(checked);
     }
diff --git a/clients/android/app/src/main/java/org/camlistore/UploadService.java b/clients/android/app/src/main/java/org/camlistore/UploadService.java
index 97dcff6fd..3e72032df 100644
--- a/clients/android/app/src/main/java/org/camlistore/UploadService.java
+++ b/clients/android/app/src/main/java/org/camlistore/UploadService.java
@@ -752,7 +752,7 @@ public class UploadService extends Service {
                 mLastNotificationProgress = -1;
 
                 mUploading = true;
-                mUploadThread = new UploadThread(UploadService.this, hp, mPrefs.trustedCert(), mPrefs.username(), mPrefs.password());
+                mUploadThread = new UploadThread(UploadService.this, hp, mPrefs.username(), mPrefs.password());
                 mUploadThread.start();
 
                 // Start a thread to release the wakelock...
diff --git a/clients/android/app/src/main/java/org/camlistore/UploadThread.java b/clients/android/app/src/main/java/org/camlistore/UploadThread.java
index 5cd9c3de5..ea9cadc59 100644
--- a/clients/android/app/src/main/java/org/camlistore/UploadThread.java
+++ b/clients/android/app/src/main/java/org/camlistore/UploadThread.java
@@ -39,7 +39,6 @@ public class UploadThread extends Thread {
 
     private final UploadService mService;
     private final HostPort mHostPort;
-    private final String mTrustedCert;
     private final String mUsername;
     private final String mPassword;
     private final LinkedBlockingQueue<UploadThreadMessage> msgCh = new LinkedBlockingQueue<UploadThreadMessage>();
@@ -54,10 +53,9 @@ public class UploadThread extends Thread {
                                                    // to stdinWriter
     private BufferedWriter stdinWriter;
 
-    public UploadThread(UploadService uploadService, HostPort hp, String trustedCert, String username, String password) {
+    public UploadThread(UploadService uploadService, HostPort hp, String username, String password) {
         mService = uploadService;
         mHostPort = hp;
-        mTrustedCert = trustedCert != null ? trustedCert.toLowerCase().trim() : "";
         mUsername = username;
         mPassword = password;
     }
@@ -163,7 +161,6 @@ public class UploadThread extends Thread {
             pb.command(binaryPath("pk-put.bin"), "--server=" + mHostPort.urlPrefix(), "file", "-stdinargs", "-vivify");
             pb.redirectErrorStream(false);
             pb.environment().put("CAMLI_AUTH", "userpass:" + mUsername + ":" + mPassword);
-            pb.environment().put("CAMLI_TRUSTED_CERT", mTrustedCert);
             pb.environment().put("CAMLI_CACHE_DIR", mService.getCacheDir().getAbsolutePath());
             pb.environment().put("CAMPUT_ANDROID_OUTPUT", "1");
             process = pb.start();
diff --git a/clients/android/app/src/main/res/values/strings.xml b/clients/android/app/src/main/res/values/strings.xml
index a3e0db77d..64f398927 100644
--- a/clients/android/app/src/main/res/values/strings.xml
+++ b/clients/android/app/src/main/res/values/strings.xml
@@ -9,8 +9,6 @@
     <string name="profiles_summary">default</string>
     <string name="settings_qr_title">QR</string>
     <string name="settings_qr_summary">Scan QR code from /ui/mobile.html</string>
-    <string name="settings_trusted_cert_title">Self-signed cert fingerprint</string>
-    <string name="settings_trusted_cert_summary">The fingerprint of your self-signed certificate. Not needed for commercial certs.</string>
     <string name="settings_username_title">Username</string>
     <string name="settings_password_title">Password</string>
     <string name="settings_max_cache_size_title">Maximum cache size</string>
diff --git a/clients/android/app/src/main/res/xml/preferences.xml b/clients/android/app/src/main/res/xml/preferences.xml
index 5c0a342df..f93be38fb 100644
--- a/clients/android/app/src/main/res/xml/preferences.xml
+++ b/clients/android/app/src/main/res/xml/preferences.xml
@@ -67,12 +67,6 @@
         android:singleLine="true"
         android:title="@string/settings_max_cache_size_title" />
 
-    <EditTextPreference
-        android:key="camli.trusted_cert"
-        android:persistent="true"
-        android:summary="@string/settings_trusted_cert_summary"
-        android:title="@string/settings_trusted_cert_title" />
-
     <EditTextPreference
         android:key="camli.dev_ip"
         android:phoneNumber="true"