diff --git a/test/css/detached-rulesets.css b/test/css/detached-rulesets.css
index e6b646a4..b98bf60b 100644
--- a/test/css/detached-rulesets.css
+++ b/test/css/detached-rulesets.css
@@ -1,12 +1,19 @@
 .wrap-selector {
   color: black;
+  one: 1px;
+  visible-one: visible;
+  visible-two: visible;
 }
 .wrap-selector {
   color: red;
+  visible-one: visible;
+  visible-two: visible;
 }
 .wrap-selector {
   color: black;
   background: white;
+  visible-one: visible;
+  visible-two: visible;
 }
 header {
   background: blue;
@@ -21,11 +28,17 @@ html.lt-ie9 header {
 }
 .wrap-selector {
   test: extra-wrap;
+  visible-one: visible;
+  visible-two: visible;
 }
 .wrap-selector .wrap-selector {
   test: wrapped-twice;
+  visible-one: visible;
+  visible-two: visible;
 }
 .wrap-selector {
   test-func: 90;
   test-arithmetic: 18px;
+  visible-one: visible;
+  visible-two: visible;
 }
diff --git a/test/less/detached-rulesets.less b/test/less/detached-rulesets.less
index 3829f681..57c2cb43 100644
--- a/test/less/detached-rulesets.less
+++ b/test/less/detached-rulesets.less
@@ -3,14 +3,23 @@
      background: white;
   };
 
+@a: 1px;
 .wrap-mixin(@ruleset) {
+  @a: hidden and if you see this in the output its a bug;
+  @b: visible;
   .wrap-selector {
+      @c: visible;
       @ruleset();
+	  visible-one: @b;
+	  visible-two: @c;
     }
 };
 
 .wrap-mixin({
   color: black;
+  one: @a;
+  @b: hidden and if you see this in the output its a bug;
+  @c: hidden and if you see this in the output its a bug;
 });
 
 .wrap-mixin(@ruleset: {