diff --git a/src/types/error_message.hpp b/src/types/error_message.hpp
new file mode 100644
index 0000000..de27772
--- /dev/null
+++ b/src/types/error_message.hpp
@@ -0,0 +1,11 @@
+#pragma once
+
+#include "error_type.hpp"
+
+#include <string>
+
+struct ErrorMessage
+{
+    ErrorType error;
+    std::string arg0;
+};