diff --git a/chrome/content/vimperator/commands.js b/chrome/content/vimperator/commands.js
index 1983df55..0a20f4d1 100644
--- a/chrome/content/vimperator/commands.js
+++ b/chrome/content/vimperator/commands.js
@@ -401,7 +401,7 @@ function Commands() //{{{
                 return;
             }
             // check for illegal ranges - only allow a-z A-Z 0-9
-            if (matches = args.match(/[a-zA-Z0-9]-[a-zA-Z0-9]/))
+            if (matches = args.match(/[a-zA-Z0-9]-[a-zA-Z0-9]/g))
             {
                 for (var i = 0; i < matches.length; i++)
                 {