diff --git a/third_party/bazel/src/main/protobuf/option_filters.proto b/third_party/bazel/src/main/protobuf/option_filters.proto
index 424e3af2072..d931083c405 100644
--- a/third_party/bazel/src/main/protobuf/option_filters.proto
+++ b/third_party/bazel/src/main/protobuf/option_filters.proto
@@ -12,6 +12,7 @@
 // See the License for the specific language governing permissions and
 // limitations under the License.
 syntax = "proto3";
+
 package options;
 
 // option java_api_version = 2;
@@ -54,4 +55,5 @@ enum OptionMetadataTag {
   INTERNAL = 4;
   reserved "TRIGGERED_BY_ALL_INCOMPATIBLE_CHANGES";
   reserved 5;
+  EXPLICIT_IN_OUTPUT_PATH = 6;
 }