diff --git a/libnetutils/ifc_utils.c b/libnetutils/ifc_utils.c
index 2786373..3f6c6b5 100644
--- a/libnetutils/ifc_utils.c
+++ b/libnetutils/ifc_utils.c
@@ -574,6 +574,7 @@
     return result;
 }
 
+// Needed by code in hidden partner repositories / branches, so don't delete.
 int ifc_disable(const char *ifname)
 {
     unsigned addr, count;