diff --git a/python/google/protobuf/internal/no_package.proto b/python/google/protobuf/internal/no_package.proto
index f6d2673536..3546dcc3f5 100644
--- a/python/google/protobuf/internal/no_package.proto
+++ b/python/google/protobuf/internal/no_package.proto
@@ -1,7 +1,5 @@
 syntax = "proto2";
 
-option py_api_version = 2;
-
 enum NoPackageEnum {
   NO_PACKAGE_VALUE_0 = 0;
   NO_PACKAGE_VALUE_1 = 1;
@@ -9,4 +7,4 @@ enum NoPackageEnum {
 
 message NoPackageMessage {
   optional NoPackageEnum no_package_enum = 1;
-}
\ No newline at end of file
+}