diff --git a/tools_webrtc/autoroller/roll_deps.py b/tools_webrtc/autoroller/roll_deps.py
index e1e4a36124..fb6a3155ae 100755
--- a/tools_webrtc/autoroller/roll_deps.py
+++ b/tools_webrtc/autoroller/roll_deps.py
@@ -39,7 +39,7 @@ DONT_AUTOROLL_THESE = [
 WEBRTC_ONLY_DEPS = [
   'src/base',
   'src/build',
-  'src/ios'
+  'src/ios',
   'src/testing',
   'src/third_party',
   'src/third_party/findbugs',