diff --git a/armsrc/iso14443a.c b/armsrc/iso14443a.c
index c0270d714..f34ab6608 100644
--- a/armsrc/iso14443a.c
+++ b/armsrc/iso14443a.c
@@ -19,7 +19,7 @@ uint8_t trigger = 0;
 // the block number for the ISO14443-4 PCB
 static uint8_t iso14_pcb_blocknum = 0;
 
-//static uint8_t* free_buffer_pointer;
+static uint8_t* free_buffer_pointer;
 
 //
 // ISO14443 timing: