Index: modules/system/system.updater.inc
===================================================================
RCS file: /Users/wright/drupal/local_repo/drupal/modules/system/system.updater.inc,v
retrieving revision 1.11
diff -u -p -r1.11 system.updater.inc
--- modules/system/system.updater.inc	30 Nov 2010 17:58:44 -0000	1.11
+++ modules/system/system.updater.inc	2 Jan 2011 21:53:31 -0000
@@ -39,7 +39,7 @@ class ModuleUpdater extends Updater impl
   }
 
   public static function canUpdateDirectory($directory) {
-    if (file_scan_directory($directory, '/.*\.module/')) {
+    if (file_scan_directory($directory, '/.*\.module$/')) {
       return TRUE;
     }
     return FALSE;
@@ -121,7 +121,7 @@ class ThemeUpdater extends Updater imple
 
   static function canUpdateDirectory($directory) {
     // This is a lousy test, but don't know how else to confirm it is a theme.
-    if (file_scan_directory($directory, '/.*\.module/')) {
+    if (file_scan_directory($directory, '/.*\.module$/')) {
       return FALSE;
     }
     return TRUE;