diff --git a/client/util.h b/client/util.h
index 21db9198f..fb31e6013 100644
--- a/client/util.h
+++ b/client/util.h
@@ -23,6 +23,7 @@
 
 uint8_t g_debugMode;
 uint8_t g_printAndLog;
+
 #define PRINTANDLOG_PRINT 1
 #define PRINTANDLOG_LOG   2
 
@@ -85,7 +86,7 @@ uint8_t GetParity(uint8_t *bits, uint8_t type, int length);
 void wiegand_add_parity(uint8_t *target, uint8_t *source, uint8_t length);
 void wiegand_add_parity_swapped(uint8_t *target, uint8_t *source, uint8_t length);
 
-void xor(unsigned char *dst, unsigned char *src, size_t len);
+//void xor(unsigned char *dst, unsigned char *src, size_t len);
 int32_t le24toh(uint8_t data[3]);
 
 uint32_t PackBits(uint8_t start, uint8_t len, uint8_t *bits);