diff --git a/services/localzone.c b/services/localzone.c
index 18407832f..6aaf0c055 100644
--- a/services/localzone.c
+++ b/services/localzone.c
@@ -518,7 +518,7 @@ local_zone_enter_rr(struct local_zone* z, uint8_t* nm, size_t nmlen,
 }
 
 /** enter data RR into auth zone */
-int
+static int
 lz_enter_rr_into_zone(struct local_zone* z, const char* rrstr)
 {
 	uint8_t* nm;