diff --git a/ets2panda/parser/ETSparserTypes.cpp b/ets2panda/parser/ETSparserTypes.cpp
index 0567f0561d425cad0467c8fb31b4ff493f11d59f..d4439b47310d3340b6ff2ba07bb4f613c09d84dd 100644
--- a/ets2panda/parser/ETSparserTypes.cpp
+++ b/ets2panda/parser/ETSparserTypes.cpp
@@ -318,7 +318,7 @@ std::pair<ir::TypeNode *, bool> ETSParser::ParseNonNullableType(TypeAnnotationPa
     Lexer()->NextToken();  // eat NonNullable
 
     ExpectToken(lexer::TokenType::PUNCTUATOR_LESS_THAN, true);
-    auto *const typeAnnotation = ParseTypeAnnotationNoPreferParam(options);
+    auto *const typeAnnotation = ParseTypeAnnotation(options);
     ParsePunctuatorGreaterThan();
     return std::make_pair(AllocNode<ir::ETSNonNullishTypeNode>(typeAnnotation, Allocator()), true);
 }
diff --git a/ets2panda/test/ast/parser/ets/notnullable_neg.ets b/ets2panda/test/ast/parser/ets/notnullable_neg.ets
new file mode 100644
index 0000000000000000000000000000000000000000..b48602f1bba30a4d60cd486fd6cfea721695a62b
--- /dev/null
+++ b/ets2panda/test/ast/parser/ets/notnullable_neg.ets
@@ -0,0 +1,41 @@
+/*
+ * 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.
+ */
+
+function main() {
+    let foo = <T>(p: T): NonNullable<<<<<<<<<<<<<<<<<<<<<<<<<<<T> =>p;
+}
+
+/* @@? 17:15 Error SyntaxError: Type cast syntax '<type>' is not supported, please use 'as' keyword instead */
+/* @@? 17:20 Error SyntaxError: Unexpected token, expected ')'. */
+/* @@? 17:22 Error SyntaxError: Unexpected token 'T'. */
+/* @@? 17:22 Error TypeError: Unresolved reference T */
+/* @@? 17:23 Error SyntaxError: Unexpected token ')'. */
+/* @@? 17:24 Error SyntaxError: Unexpected token ':'. */
+/* @@? 17:26 Error SyntaxError: Unexpected token 'NonNullable'. */
+/* @@? 17:26 Error TypeError: Unresolved reference NonNullable */
+/* @@? 17:37 Error SyntaxError: Expected '>', got '<<'. */
+/* @@? 17:37 Error SyntaxError: Expected '<', got '<<'. */
+/* @@? 17:37 Error SyntaxError: Expected '>', got '<<'. */
+/* @@? 17:37 Error SyntaxError: Expected '<', got '<<'. */
+/* @@? 17:39 Error SyntaxError: Unexpected token '<<'. */
+/* @@? 17:43 Error SyntaxError: Unexpected token '<<'. */
+/* @@? 17:47 Error SyntaxError: Unexpected token '<<'. */
+/* @@? 17:51 Error SyntaxError: Unexpected token '<<'. */
+/* @@? 17:55 Error SyntaxError: Unexpected token '<<'. */
+/* @@? 17:59 Error SyntaxError: Unexpected token '<<'. */
+/* @@? 17:63 Error SyntaxError: Type cast syntax '<type>' is not supported, please use 'as' keyword instead */
+/* @@? 17:67 Error SyntaxError: Unexpected token '=>'. */
+/* @@? 17:69 Error SyntaxError: Unexpected token 'p'. */
+/* @@? 17:69 Error TypeError: Unresolved reference p */