diff --git a/mozilla/toolkit/mozapps/update/src/nsUpdateService.js.in b/mozilla/toolkit/mozapps/update/src/nsUpdateService.js.in
index d6fdd7d7814..a62cf1160dc 100644
--- a/mozilla/toolkit/mozapps/update/src/nsUpdateService.js.in
+++ b/mozilla/toolkit/mozapps/update/src/nsUpdateService.js.in
@@ -880,7 +880,7 @@ function UpdateService() {
   try {
     gABI = gApp.XPCOMABI;
   }
-  catch {
+  catch (e) {
     LOG("UpdateService", "XPCOM ABI unknown: updates are not possible.");
   }