diff --git a/lib/utils/path.js b/lib/utils/path.js
index 9daa8e6a4..f65d1b2ba 100644
--- a/lib/utils/path.js
+++ b/lib/utils/path.js
@@ -8,7 +8,13 @@ function normalizePath(filename) {
 
 // Return true if file path is inside a folder
 function isInRoot(root, filename) {
+    root = path.normalize(root);
     filename = path.normalize(filename);
+
+    if (root[root.length - 1] != path.sep) {
+        root = root + path.sep;
+    }
+
     return (filename.substr(0, root.length) === root);
 }