diff --git a/lib/utils.js b/lib/utils.js
index 788d0cf..9d46e9a 100644
--- a/lib/utils.js
+++ b/lib/utils.js
@@ -183,8 +183,10 @@ function getCanonicalNamePlain(loader, normalized, isPlugin) {
       return p;
 
     // support trailing / in paths rules
-    else if (normalized.substr(0, curPath.length - 1) == curPath.substr(0, curPath.length - 1) && (normalized.length < curPath.length || normalized[curPath.length - 1] == curPath[curPath.length - 1]) && curPath[curPath.length - 1] == '/')
-      return p.substr(0, p.length - 1) + (normalized.length > curPath.length ? '/' + normalized.substr(curPath.length) : '');
+    else if (normalized.substr(0, curPath.length - 1) == curPath.substr(0, curPath.length - 1) && 
+        (normalized.length < curPath.length || normalized[curPath.length - 1] == curPath[curPath.length - 1]) && 
+        curPath[curPath.length - 1] == '/')
+      return p + normalized.substr(curPath.length);
   }
 
   // then wildcard matches