diff --git a/armsrc/mifarecmd.c b/armsrc/mifarecmd.c
index 13d13134f..af6b8f1b5 100644
--- a/armsrc/mifarecmd.c
+++ b/armsrc/mifarecmd.c
@@ -28,7 +28,7 @@
  SpinDelayUs(AUTHENTICATION_TIMEOUT); \
 }
 #endif
-static uint8_t dummy_anser = 0;
+static uint8_t dummy_answer = 0;
 
 //-----------------------------------------------------------------------------
 // Select, Authenticate, Read a MIFARE tag.