diff --git a/client/cmdlfhid.c b/client/cmdlfhid.c
index b9d3ace32..9b13b509f 100644
--- a/client/cmdlfhid.c
+++ b/client/cmdlfhid.c
@@ -319,7 +319,8 @@ int CmdHIDWiegand(const char *Cmd) {
 	uint32_t oem = 0, fc = 0;
 	uint64_t cardnum = 0;
 	
-	uint32_t blocks[2], wiegand[2];
+	uint32_t blocks[2] = {0,0}
+	uint32_t wiegand[2] = {0,0}; 
 
 	uint8_t bits[96];
 	uint8_t *bs = bits;