diff --git a/temporal/api/enums/v1/workflow.proto b/temporal/api/enums/v1/workflow.proto
index a9ac3fc33..118e743f2 100644
--- a/temporal/api/enums/v1/workflow.proto
+++ b/temporal/api/enums/v1/workflow.proto
@@ -222,4 +222,7 @@ enum SuggestContinueAsNewReason {
     // See target_worker_deployment_version_changed to find out if Target Version Changed.
     reserved 4;
     reserved "SUGGEST_CONTINUE_AS_NEW_REASON_TARGET_WORKER_DEPLOYMENT_VERSION_CHANGED";
+
+    // Workflow's signal count is approaching the configured maximum signals per execution.
+    SUGGEST_CONTINUE_AS_NEW_REASON_TOO_MANY_SIGNALS = 5;
 }