diff --git a/client/src/mifare/mifare4.c b/client/src/mifare/mifare4.c
index ea7986441..1faa3a82a 100644
--- a/client/src/mifare/mifare4.c
+++ b/client/src/mifare/mifare4.c
@@ -21,6 +21,7 @@
 #include "commonutil.h"  // ARRAYLEN
 #include "comms.h" // DropField
 #include "cmdhf14a.h"
+#include "cmdhfmfp.h" // mfp_data_crypt
 #include "ui.h"
 #include "crypto/libpcrypto.h"
 
@@ -532,6 +533,9 @@ int mfpReadSector(uint8_t sectorNo, uint8_t keyType, uint8_t *key, uint8_t *data
             DropField();
             return 6;
         }
+        
+        // Encrypted mode is always used. Doing an if to check will waste instructions
+        mfp_data_crypt(&_session, &data[1], &data[1], true);
 
         memcpy(&dataout[(n - firstBlockNo) * 16], &data[1], 16);