diff --git a/lib/dns/stats.c b/lib/dns/stats.c
index ce7b6fffd6..11d30e90eb 100644
--- a/lib/dns/stats.c
+++ b/lib/dns/stats.c
@@ -73,10 +73,11 @@ enum {
 	rdtypecounter_ancient_nxdomain = rdtypenxcounter_ancient_max,
 	/* limit of number counter types */
 	rdatasettypecounter_max = rdtypecounter_ancient_nxdomain + 1,
-	/* dnssec maximum key id */
-	dnssec_keyid_max = 65535
 };
 
+/* dnssec maximum key id */
+static int dnssec_keyid_max = 65535;
+
 struct dns_stats {
 	unsigned int	magic;
 	dns_statstype_t	type;