diff --git a/ets2panda/parser/ETSparser.cpp b/ets2panda/parser/ETSparser.cpp
index 1c9fe98ea1e18eee9a8f0f6e877e2625057ed7f8..dbea148c32674f95e7364ca22af470db0ea9af16 100644
--- a/ets2panda/parser/ETSparser.cpp
+++ b/ets2panda/parser/ETSparser.cpp
@@ -1764,6 +1764,7 @@ ir::Expression *ETSParser::ParseFunctionParameter()
         case lexer::TokenType::KEYW_PROTECTED:
             LogError(diagnostic::FIELD_IN_PARAM);
             Lexer()->NextToken();
+            [[fallthrough]];
         default:
             break;
     }