diff --git a/internal/proto/credential.proto b/internal/proto/credential.proto
index 53506e88..14e7ca70 100644
--- a/internal/proto/credential.proto
+++ b/internal/proto/credential.proto
@@ -16,7 +16,6 @@ syntax = "proto3";
 
 package nearby.internal;
 
-// option cc_api_version = 2;
 // option java_api_version = 2;
 option java_multiple_files = true;
 option java_package = "com.google.nearby.presence";