diff --git a/minify.module b/minify.module
index c2c8da5..5cef7f9 100644
--- a/minify.module
+++ b/minify.module
@@ -316,9 +316,14 @@ function _minify_javascript_exist($search_value, $cache) {
  * Helper function to check file version is same
  */
 function _minify_file_version_same($file_details, $cache_details) {
-  return (isset($file_details['version']) && isset($cache_details['version']))
-    ? ( ($file_details['version'] == $cache_details['version']) ? true : false) 
-    : false;
+  if (isset($file_details['version']) && isset($cache_details['version'])) {
+    if (strcmp($file_details['version'], $cache_details['version']) === 0) {
+      return TRUE;
+    }
+  } elseif(empty($file_details['version']) && empty($cache_details['version'])) {
+    return TRUE;
+  }
+  return FALSE;
 }
 
 /*