diff --git a/client/src/cmdhfmf.c b/client/src/cmdhfmf.c
index 559057459..a77f14c59 100644
--- a/client/src/cmdhfmf.c
+++ b/client/src/cmdhfmf.c
@@ -5922,10 +5922,10 @@ int CmdHFMFNDEFRead(const char *Cmd) {
     }
 
     PrintAndLogEx(INFO, "reading data from tag");
-    for (int i = 1; i <= madlen; i++) {
+    for (int i = 0; i < madlen; i++) {
         if (ndef_aid == mad[i]) {
             uint8_t vsector[MFBLOCK_SIZE * 4] = {0};
-            if (mfReadSector(i, keyB ? MF_KEY_B : MF_KEY_A, ndefkey, vsector)) {
+            if (mfReadSector(i + 1, keyB ? MF_KEY_B : MF_KEY_A, ndefkey, vsector)) {
                 PrintAndLogEx(ERR, "error, reading sector %d ", i + 1);
                 return PM3_ESOFT;
             }