diff --git a/test/fixtures/stylesheets/compass/config.rb b/test/fixtures/stylesheets/compass/config.rb
index 4f5ba70d..141d3aed 100644
--- a/test/fixtures/stylesheets/compass/config.rb
+++ b/test/fixtures/stylesheets/compass/config.rb
@@ -8,3 +8,7 @@ output_style = :nested
 # http_images_path = :relative
 http_images_path = "/images"
 line_comments = false
+
+asset_cache_buster do |path, file|
+  "busted=true"
+end
diff --git a/test/fixtures/stylesheets/compass/css/lists.css b/test/fixtures/stylesheets/compass/css/lists.css
index 1373fc93..7909e445 100644
--- a/test/fixtures/stylesheets/compass/css/lists.css
+++ b/test/fixtures/stylesheets/compass/css/lists.css
@@ -96,5 +96,5 @@ ul.pretty {
   margin-left: 0; }
   ul.pretty li {
     padding-left: 14px;
-    background: url('/images/4x6.png?1278693488') no-repeat 4px 7px;
+    background: url('/images/4x6.png?busted=true') no-repeat 4px 7px;
     list-style-type: none; }