diff --git a/parallel.c b/parallel.c
index abed345..5746862 100644
--- a/parallel.c
+++ b/parallel.c
@@ -66,7 +66,7 @@
 int register_par_master(const struct par_master *mst, const enum chipbustype buses,
 			const size_t max_rom_decode, void *data)
 {
-	struct registered_master rmst;
+	struct registered_master rmst = { 0 };
 
 	if (mst->shutdown) {
 		if (register_shutdown(mst->shutdown, data)) {