2 files changed, 2 insertions, 2 deletions
diff --git a/modules/libpref/test/unit/test_bug345529.js b/modules/libpref/test/unit/test_bug345529.js
index 05fce35f57..21a4fa5fa7 100644
--- a/modules/libpref/test/unit/test_bug345529.js
+++ b/modules/libpref/test/unit/test_bug345529.js
@@ -9,7 +9,7 @@ function run_test() {
   var observer = {
     QueryInterface: ChromeUtils.generateQI(["nsIObserver"]),
 
-    observe: function observe(aSubject, aTopic, aState) {
+    observe: function observe() {
       Services.prefs.removeObserver(PREF_NAME, observer);
     },
   };
diff --git a/modules/libpref/test/unit/test_bug577950.js b/modules/libpref/test/unit/test_bug577950.js
index f9106a349f..0da37b3a78 100644
--- a/modules/libpref/test/unit/test_bug577950.js
+++ b/modules/libpref/test/unit/test_bug577950.js
@@ -6,7 +6,7 @@ function run_test() {
   var observer = {
     QueryInterface: ChromeUtils.generateQI(["nsIObserver"]),
 
-    observe: function observe(aSubject, aTopic, aState) {
+    observe: function observe() {
       // Don't do anything.
     },
   };