diff --git a/gulliver/thirdparty/phing/Phing.php b/gulliver/thirdparty/phing/Phing.php
index 88fe35eef..00e9dfb12 100644
--- a/gulliver/thirdparty/phing/Phing.php
+++ b/gulliver/thirdparty/phing/Phing.php
@@ -856,7 +856,8 @@ class Phing {
                 if (self::getMsgOutputLevel() === PROJECT_MSG_DEBUG) {
                     print("Phing::import() prepending new include_path components: " . implode(PATH_SEPARATOR, $new_parts) . "\n");
                 }
-                if (is_dir(implode(PATH_SEPARATOR, array_merge($new_parts, $curr_parts)))) {
+                $firstPath = explode(":", implode(PATH_SEPARATOR, array_merge($new_parts, $curr_parts)));
+                if (is_dir($firstPath[0])) {
                     ini_set('include_path', implode(PATH_SEPARATOR, array_merge($new_parts, $curr_parts)));
                 }
             }