diff --git a/client/cmdhfmfu.c b/client/cmdhfmfu.c
index 9826a5921..c0fd136a5 100644
--- a/client/cmdhfmfu.c
+++ b/client/cmdhfmfu.c
@@ -18,7 +18,7 @@
 
 #define MAX_UL_BLOCKS     0x0f
 #define MAX_ULC_BLOCKS    0x2b
-#define MAX_ULEV1a_BLOCKS 0x12
+#define MAX_ULEV1a_BLOCKS 0x13
 #define MAX_ULEV1b_BLOCKS 0x28
 #define MAX_NTAG_203      0x29
 #define MAX_NTAG_210      0x13