diff --git a/release/mitmdump.spec b/release/mitmdump.spec
index 1707122cf..f9b0311c7 100644
--- a/release/mitmdump.spec
+++ b/release/mitmdump.spec
@@ -16,6 +16,10 @@ a.datas += Tree(
   "./libmproxy/onboarding/static",
   prefix="libmproxy/onboarding/static"
 )
+a.datas += Tree(
+    "../venv.mitmproxy/lib/python2.7/site-packages/cryptography/hazmat/bindings/openssl/src",
+    prefix = "cryptography/hazmat/bindings/openssl/src"
+)
 pyz = PYZ(a.pure)
 exe = EXE(pyz,
           a.scripts,
diff --git a/release/mitmproxy.spec b/release/mitmproxy.spec
index cc324aa7d..9aab5ef46 100644
--- a/release/mitmproxy.spec
+++ b/release/mitmproxy.spec
@@ -16,6 +16,10 @@ a.datas += Tree(
   "./libmproxy/onboarding/static",
   prefix="libmproxy/onboarding/static"
 )
+a.datas += Tree(
+    "../venv.mitmproxy/lib/python2.7/site-packages/cryptography/hazmat/bindings/openssl/src",
+    prefix = "cryptography/hazmat/bindings/openssl/src"
+)
 pyz = PYZ(a.pure)
 exe = EXE(pyz,
           a.scripts,
diff --git a/release/mitmweb.spec b/release/mitmweb.spec
index b247ce519..565482e66 100644
--- a/release/mitmweb.spec
+++ b/release/mitmweb.spec
@@ -24,6 +24,10 @@ a.datas += Tree(
   "./libmproxy/web/static",
   prefix="libmproxy/web/static"
 )
+a.datas += Tree(
+    "../venv.mitmproxy/lib/python2.7/site-packages/cryptography/hazmat/bindings/openssl/src",
+    prefix = "cryptography/hazmat/bindings/openssl/src"
+)
 pyz = PYZ(a.pure)
 exe = EXE(pyz,
           a.scripts,