diff --git a/lib/path.js b/lib/path.js
index 768c4c1e5bc..04187aaf2f4 100644
--- a/lib/path.js
+++ b/lib/path.js
@@ -269,7 +269,7 @@ if (isWindows) {
       }
 
       if (start > end) return [];
-      return arr.slice(start, end - start + 1);
+      return arr.slice(start, end + 1);
     }
 
     var toParts = trim(to.split('\\'));
@@ -413,7 +413,7 @@ if (isWindows) {
       }
 
       if (start > end) return [];
-      return arr.slice(start, end - start + 1);
+      return arr.slice(start, end + 1);
     }
 
     var fromParts = trim(from.split('/'));