diff --git a/ets2panda/parser/ETSFormattedParser.cpp b/ets2panda/parser/ETSFormattedParser.cpp
index cfda403d427a7b9c0ebc983d7b8f5b745204cfb3..b2e9c03b74f1cdbff1a8b041da8b21c5b42c7d9f 100644
--- a/ets2panda/parser/ETSFormattedParser.cpp
+++ b/ets2panda/parser/ETSFormattedParser.cpp
@@ -106,8 +106,8 @@ ir::TypeNode *ETSParser::ParseTypeFormatPlaceholder(std::optional<ParserImpl::No
 {
     if (!nodeFormat.has_value()) {
         if (insertingNodes_.empty()) {
-            LogError(diagnostic::INSERT_NODE_ABSENT, {}, Lexer()->GetToken().Start());
-            ES2PANDA_UNREACHABLE();
+            LogUnexpectedToken(lexer::TokenType::PUNCTUATOR_FORMAT);
+            return AllocBrokenType(Lexer()->GetToken().Loc());
         }
 
         nodeFormat = GetFormatPlaceholderType();
diff --git a/ets2panda/test/ast/parser/ets/invalid_punctuator_format.ets b/ets2panda/test/ast/parser/ets/invalid_punctuator_format.ets
new file mode 100644
index 0000000000000000000000000000000000000000..2eba0019b69d4a8da790cfad2bc98cd8fa23d3cc
--- /dev/null
+++ b/ets2panda/test/ast/parser/ets/invalid_punctuator_format.ets
@@ -0,0 +1,27 @@
+/*
+ * Copyright (c) 2025 Huawei Device Co., Ltd.
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+interface I {
+J* @@?
+}
+
+/* @@? 17:2 Error SyntaxError: Interface fields must have type annotation. */
+/* @@? 17:4 Error SyntaxError: Unexpected token '@@'. */
+/* @@? 17:4 Error SyntaxError: Unexpected token, expected ','. */
+/* @@? 17:4 Error SyntaxError: Unexpected token, expected 'private' or identifier. */
+/* @@? 17:6 Error SyntaxError: Identifier expected. */
+/* @@? 17:6 Error SyntaxError: Unexpected token, expected ','. */
+/* @@? 17:6 Error SyntaxError: Unexpected token, expected 'private' or identifier. */
+/* @@? 18:1 Error SyntaxError: Identifier expected. */