diff --git a/tap-iostat.c b/tap-iostat.c
index 8ff9e3078c..1a9f69f254 100644
--- a/tap-iostat.c
+++ b/tap-iostat.c
@@ -609,7 +609,7 @@ CALC_TYPE_AVG	5
 	}
 }
 
-void
+static void
 iostat_init(const char *optarg, void* userdata _U_)
 {
 	float interval_float;
diff --git a/tap-sctpchunkstat.c b/tap-sctpchunkstat.c
index 800af2e250..eb2b5e6fb6 100644
--- a/tap-sctpchunkstat.c
+++ b/tap-sctpchunkstat.c
@@ -105,7 +105,8 @@ sctpstat_reset(void *phs)
 }
 
 
-sctp_ep_t* alloc_sctp_ep(struct _sctp_info *si)
+static sctp_ep_t* 
+alloc_sctp_ep(struct _sctp_info *si)
 {
 	sctp_ep_t* ep;
 	guint16 chunk_type;