diff --git a/client/src/cmdhfcryptorf.c b/client/src/cmdhfcryptorf.c
index 98eada2ba..b473b2fa2 100644
--- a/client/src/cmdhfcryptorf.c
+++ b/client/src/cmdhfcryptorf.c
@@ -19,6 +19,7 @@
 #include "crc16.h"
 #include "cmdhf14a.h"
 #include "protocols.h"  // definitions of ISO14B protocol
+#include "iso14b.h"
 
 #define TIMEOUT 2000
 static int CmdHelp(const char *Cmd);