diff --git a/src/main.c b/src/main.c
index 2f47ada2..e6b2a1fa 100644
--- a/src/main.c
+++ b/src/main.c
@@ -1485,6 +1485,12 @@ static int _tf_command_run(const char* file, int argc, char* argv[])
 		}
 	}
 
+	for (int i = optind; i < argc; i++)
+	{
+		tf_printf("Unexpected argument: %s\n", argv[i]);
+		show_usage = true;
+	}
+
 	if (show_usage)
 	{
 		tf_printf("\n%s run [options]\n\n", file);