diff --git a/liberty.c b/liberty.c
index 178754c..0b17160 100644
--- a/liberty.c
+++ b/liberty.c
@@ -5321,7 +5321,7 @@ end:
 }
 
 /// Clone an item.  Schema assignments aren't retained.
-struct config_item *
+static struct config_item *
 config_item_clone (struct config_item *self)
 {
 	// Oh well, it saves code