diff --git a/roll_dep.py b/roll_dep.py
index a16a5cdce8..6cae24f388 100755
--- a/roll_dep.py
+++ b/roll_dep.py
@@ -202,7 +202,7 @@ def main():
   try:
     roll(
         os.getcwd(),
-        args.dep_path,
+        args.dep_path.rstrip('/').rstrip('\\'),
         args.roll_to,
         args.key,
         reviewers,