diff --git a/armsrc/mifarecmd.c b/armsrc/mifarecmd.c
index 6f84fd80a..972a97a40 100644
--- a/armsrc/mifarecmd.c
+++ b/armsrc/mifarecmd.c
@@ -1965,7 +1965,9 @@ int MifareECardLoad(uint8_t sectorcnt, uint8_t keytype) {
         for (uint8_t blockNo = 0; blockNo < NumBlocksPerSector(sectorNo); blockNo++) {
             if (mifare_classic_readblock(pcs, cuid, FirstBlockOfSector(sectorNo) + blockNo, dataoutbuf)) {
                 retval = PM3_EPARTIAL;
-                emlSetMem("\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", FirstBlockOfSector(sectorNo) + blockNo, 1);
+                
+                memset(dataoutbuf2, 0, sizeof(dataoutbuf2));
+                emlSetMem(dataoutbuf2, FirstBlockOfSector(sectorNo) + blockNo, 1);
               
                 if (DBGLEVEL > DBG_ERROR) Dbprintf("Error reading sector %2d block %2d", sectorNo, blockNo);
                 continue;