diff --git a/app/aboot/aboot.c b/app/aboot/aboot.c
index ca48092..973e4a2 100644
--- a/app/aboot/aboot.c
+++ b/app/aboot/aboot.c
@@ -2016,12 +2016,13 @@
 	int index = INVALID_PTN;
 	char *token = NULL;
 	char *pname = NULL;
+	char *sp;
 	uint8_t lun = 0;
 	bool lun_set = false;
 
-	token = strtok((char *)arg, ":");
+	token = strtok_r((char *)arg, ":", &sp);
 	pname = token;
-	token = strtok(NULL, ":");
+	token = strtok_r(NULL, ":", &sp);
 	if(token)
 	{
 		lun = atoi(token);