diff --git a/sys/netinet/sctp_pcb.c b/sys/netinet/sctp_pcb.c
index 6821d0bf384e..fd54dfbc37e2 100644
--- a/sys/netinet/sctp_pcb.c
+++ b/sys/netinet/sctp_pcb.c
@@ -5771,7 +5771,7 @@ sctp_startup_mcore_threads(void)
 #endif
 
 void
-sctp_pcb_init()
+sctp_pcb_init(void)
 {
 	/*
 	 * SCTP initialization for the PCB structures should be called by