diff --git a/src/libs/3rdparty/cplusplus/AST.h b/src/libs/3rdparty/cplusplus/AST.h
index d6c62a3c7dd..c792581d426 100644
--- a/src/libs/3rdparty/cplusplus/AST.h
+++ b/src/libs/3rdparty/cplusplus/AST.h
@@ -1461,6 +1461,7 @@ public:
     unsigned ref_qualifier_token;
     ExceptionSpecificationAST *exception_specification;
     TrailingReturnTypeAST *trailing_return_type;
+    // Some FunctionDeclarators can also be interpreted as an initializer, like for 'A b(c);'
     ExpressionAST *as_cpp_initializer;
 
 public: // annotations
diff --git a/src/libs/3rdparty/cplusplus/Parser.cpp b/src/libs/3rdparty/cplusplus/Parser.cpp
index 2dbbce09394..c2a579af38b 100644
--- a/src/libs/3rdparty/cplusplus/Parser.cpp
+++ b/src/libs/3rdparty/cplusplus/Parser.cpp
@@ -1491,11 +1491,12 @@ bool Parser::parseDeclarator(DeclaratorAST *&node, SpecifierListAST *decl_specif
 
                 bool blocked = blockErrors(true);
                 if (parseInitializer(initializer, &node->equal_token)) {
-                    NestedExpressionAST *expr = 0;
+                    // maybe the initializer also parses as a FunctionDeclarator?
+                    ExpressionListParenAST *expr = 0;
                     if (initializer)
-                        expr = initializer->asNestedExpression();
+                        expr = initializer->asExpressionListParen();
                     if (expr) {
-                        if (expr->expression && expr->rparen_token && (LA() == T_COMMA || LA() == T_SEMICOLON)) {
+                        if (expr->expression_list && expr->rparen_token && (LA() == T_COMMA || LA() == T_SEMICOLON)) {
                             rewind(lparen_token);
 
                             // check for ambiguous declarators.