diff --git a/epan/dissectors/packet-wps.c b/epan/dissectors/packet-wps.c
index d4c6bdc96b..30941068c8 100644
--- a/epan/dissectors/packet-wps.c
+++ b/epan/dissectors/packet-wps.c
@@ -42,6 +42,7 @@
 #include "packet-ieee80211.h"
 
 void proto_register_wps(void);
+void proto_reg_handoff_wps(void);
 
 static int  hf_eapwps_opcode     = -1;
 static int  hf_eapwps_flags      = -1;