diff --git a/test/parser.cpp b/test/parser.cpp
index 08789b4..ea46c4e 100644
--- a/test/parser.cpp
+++ b/test/parser.cpp
@@ -10,7 +10,8 @@
 
 void test_let_statement(ast::statement* stmt, const std::string name) {
     REQUIRE(stmt->token_literal() == "let");
-    ast::let* let_stmt = dynamic_cast<ast::let*>(stmt);
+    ast::let* let_stmt;
+    REQUIRE_NOTHROW(let_stmt = dynamic_cast<ast::let*>(stmt));
     REQUIRE_MESSAGE(
         let_stmt != nullptr,
         "Couldn't cast statement to a let statement"