diff --git a/src/backend/replication/logical/worker.c b/src/backend/replication/logical/worker.c
index 37bb884127..dbf88c9553 100644
--- a/src/backend/replication/logical/worker.c
+++ b/src/backend/replication/logical/worker.c
@@ -658,7 +658,7 @@ handle_streamed_transaction(LogicalRepMsgType action, StringInfo s)
 			return false;
 
 		default:
-			Assert(false);
+			elog(ERROR, "unexpected apply action: %d", (int) apply_action);
 			return false;		/* silence compiler warning */
 	}
 }