diff --git a/Userland/Libraries/LibCpp/Parser.cpp b/Userland/Libraries/LibCpp/Parser.cpp
index 5a75d8e193..60ffd952a2 100644
--- a/Userland/Libraries/LibCpp/Parser.cpp
+++ b/Userland/Libraries/LibCpp/Parser.cpp
@@ -769,6 +769,7 @@ Optional<NonnullRefPtrVector<Parameter>> Parser::parse_parameter_list(ASTNode& p
                 name = text_of_token(name_identifier.value());
 
             auto param = create_ast_node<Parameter>(parent, type->start(), name_identifier.has_value() ? name_identifier.value().end() : type->end(), name);
+            type->set_parent(*param.ptr());
 
             param->set_type(move(type));
             parameters.append(move(param));