diff --git a/src/app/main.cpp b/src/app/main.cpp
index 0175fb0..7d26f31 100644
--- a/src/app/main.cpp
+++ b/src/app/main.cpp
@@ -13,12 +13,17 @@ int main(int argc, char* argv[])
 		return 0;
 	}
 
-	std::string str_importance = argv[2];
-	ISaver::ImportanceMessage base_importance = ISaver::StringToImportanceMessage(str_importance);
+	ISaver::ImportanceMessage base_importance;
+	try {
+		base_importance = ISaver::StringToImportanceMessage(argv[2]);
+	} catch (const std::exception& e) {
+		std::cerr << e.what() << '\n';
+		return 0;
+	}
 	SaverLib saver_lib(argv[1], base_importance);
-	
+
 	SaveThread save_thread(saver_lib);
-	
+
 	UserInput ui(save_thread, base_importance);
 	ui.start();