diff --git a/test/css/import.css b/test/css/import.css
index 378beb3b8..8b4775a32 100644
--- a/test/css/import.css
+++ b/test/css/import.css
@@ -1,6 +1,7 @@
 @import "import-test-d.css";
 #import {
   color: red;
+  background-image: url("import/relative.png");
 }
 .mixin {
   height: 10px;
diff --git a/test/less/import/import-test-c.less b/test/less/import/import-test-c.less
index 111266ba8..8218a70de 100644
--- a/test/less/import/import-test-c.less
+++ b/test/less/import/import-test-c.less
@@ -4,4 +4,5 @@
 
 #import {
   color: @c;
+  background-image: url("relative.png");
 }