diff --git a/flashrom.c b/flashrom.c
index e2ad170..dae54f0 100644
--- a/flashrom.c
+++ b/flashrom.c
@@ -351,6 +351,7 @@
 		int i = --shutdown_fn_count;
 		ret |= shutdown_fn[i].func(shutdown_fn[i].data);
 	}
+	programmer_param = NULL;
 	return ret;
 }