diff --git a/lib/Minify/ImportProcessor.php b/lib/Minify/ImportProcessor.php
index 09ec64c9..4191f328 100644
--- a/lib/Minify/ImportProcessor.php
+++ b/lib/Minify/ImportProcessor.php
@@ -54,6 +54,7 @@ private function __construct($currentDir, $previewsDir = "")
 
     private function _getContent($file, $is_imported = false)
     {
+        $file = preg_replace('~\\?.*~', '', $file);
         $file = realpath($file);
         if (! $file
             || in_array($file, self::$filesIncluded)
diff --git a/tests/_test_files/importProcessor/css/input.css b/tests/_test_files/importProcessor/css/input.css
index 15347335..5b2fcd2a 100644
--- a/tests/_test_files/importProcessor/css/input.css
+++ b/tests/_test_files/importProcessor/css/input.css
@@ -1,4 +1,4 @@
-@import url(adjacent.css) screen;
+@import url(adjacent.css?ver=1) screen;
 @import "1/tv.css" tv, projection;
 @import "../lib/css/example.css";
 input foo { background: red url(/red.gif); }