diff --git a/test/init.inc b/test/init.inc
index 023f1d7a2f..6e51c54720 100644
--- a/test/init.inc
+++ b/test/init.inc
@@ -109,8 +109,7 @@ function copy_to_download_dir($f) {
 
 function add_user($prefs_file) {
     global $BOINC_EMAIL;
-
-    PassThru("sed -e s/BOINC_MASTER_URL/$BOINC_MASTER_URL/ $prefs_file > prefs_temp.xml");
+    PassThru("sed -e s/BOINC_MASTER_URL/\$BOINC_MASTER_URL/ $prefs_file > prefs_temp.xml");
     $cmd = "../tools/add user -email_addr $BOINC_EMAIL -user_name David -web_password foobar -authenticator 3f7b90793a0175ad0bda68684e8bd136 ";
     if ($prefs_file) {
         $cmd = $cmd." -prefs_file prefs_temp.xml";
diff --git a/test/test_uc.php b/test/test_uc.php
index 5546c77453..6b8f856ce7 100644
--- a/test/test_uc.php
+++ b/test/test_uc.php
@@ -13,14 +13,13 @@
     init_client_dirs("prefs1.xml");
     copy_to_download_dir("input");
     add_platform(null);
-    add_user(null);
+    add_user("prefs.xml");
     add_app("upper_case", null, null);
     create_work("-appname upper_case -rsc_iops 180000000000.0 -rsc_fpops 0.0 -wu_name uc_wu -wu_template uc_wu -result_template uc_result -nresults 2 input input input input input");
     start_feeder();
     //run_client("-exit_after 10");
     run_client("-exit_when_idle");
     stop_feeder();
-
     check_results_done();
     compare_file("uc_wu_0_0", "uc_correct_output");
     compare_file("uc_wu_1_0", "uc_correct_output");