diff --git a/armsrc/Standalone/hf_young.c b/armsrc/Standalone/hf_young.c
index c9f89da7e..fc72df2ac 100644
--- a/armsrc/Standalone/hf_young.c
+++ b/armsrc/Standalone/hf_young.c
@@ -210,7 +210,7 @@ void RunMod() {
                 if (button_action == 0) {  // No button action, proceed with sim
 
                     uint8_t flags = FLAG_4B_UID_IN_DATA;
-                    uint8_t data[USB_CMD_DATA_SIZE] = {0}; // in case there is a read command received we shouldn't break
+                    uint8_t data[PM3_CMD_DATA_SIZE] = {0}; // in case there is a read command received we shouldn't break
 
                     memcpy(data, uids[selected].uid, uids[selected].uidlen);