diff --git a/src/mfoc.c b/src/mfoc.c
index e71c3c1..9c3e615 100644
--- a/src/mfoc.c
+++ b/src/mfoc.c
@@ -82,6 +82,8 @@ int main(int argc, char *const argv[])
   // Array with default Mifare Classic keys
   uint8_t defaultKeys[][6] = {
     {0xff, 0xff, 0xff, 0xff, 0xff, 0xff}, // Default key (first key used by program if no user defined key)
+    {0xa0, 0xa1, 0xa2, 0xa3, 0xa4, 0xa5}, // NFCForum MAD key
+    {0xd3, 0xf7, 0xd3, 0xf7, 0xd3, 0xf7}, // NFCForum content key
     {0x00, 0x00, 0x00, 0x00, 0x00, 0x00}, // Blank key
     {0xb0, 0xb1, 0xb2, 0xb3, 0xb4, 0xb5},
     {0x4d, 0x3a, 0x99, 0xc3, 0x51, 0xdd},