diff --git a/client/cmdlft55xx.c b/client/cmdlft55xx.c
index 10461754f..e10b24d05 100644
--- a/client/cmdlft55xx.c
+++ b/client/cmdlft55xx.c
@@ -1378,7 +1378,7 @@ int CmdT55xxBruteForce(const char *Cmd) {
 	char filename[FILE_PATH_SIZE]={0};
 	int	keycnt = 0;
 	uint8_t stKeyBlock = 20;
-	uint8_t *keyBlock = NULL, *p;
+	uint8_t *keyBlock = NULL, *p = NULL;
 	keyBlock = calloc(stKeyBlock, 6);
 	if (keyBlock == NULL) return 1;