1 files changed, 2 insertions, 2 deletions
diff --git a/src/google/protobuf/unittest_preserve_unknown_enum.proto b/src/google/protobuf/unittest_preserve_unknown_enum.proto
index 24e6828f..abc3de28 100644
--- a/src/google/protobuf/unittest_preserve_unknown_enum.proto
+++ b/src/google/protobuf/unittest_preserve_unknown_enum.proto
@@ -49,7 +49,7 @@ enum MyEnumPlusExtra {
 }
 
 message MyMessage {
-  optional MyEnum e = 1;
+  MyEnum e = 1;
   repeated MyEnum repeated_e = 2;
   repeated MyEnum repeated_packed_e = 3 [packed=true];
   repeated MyEnumPlusExtra repeated_packed_unexpected_e = 4;  // not packed
@@ -60,7 +60,7 @@ message MyMessage {
 }
 
 message MyMessagePlusExtra {
-  optional MyEnumPlusExtra e = 1;
+  MyEnumPlusExtra e = 1;
   repeated MyEnumPlusExtra repeated_e = 2;
   repeated MyEnumPlusExtra repeated_packed_e = 3 [packed=true];
   repeated MyEnumPlusExtra repeated_packed_unexpected_e = 4 [packed=true];