diff --git a/Makefile b/Makefile
index 41246b7..fb1b49f 100644
--- a/Makefile
+++ b/Makefile
@@ -52,7 +52,7 @@
 	touch ../../ENV/lib/python2.7/site-packages/google/__init__.py
 	PYTHONPATH=../../ENV/lib/python2.7/site-packages \
 	PATH=../../luci/appengine/components/tools:$(PATH) \
-	../../cipd/protoc \
+	../../cipd/bin/protoc \
 	--python_out=. --prpc-python_out=. api/v3/api_proto/*.proto
 	cd ../../go/src/infra/monorailv2 && \
 	cproto -proto-path ../../../../appengine/monorail/ ../../../../appengine/monorail/api/v3/api_proto/