diff --git a/src/dns/nm-dns-systemd-resolved.c b/src/dns/nm-dns-systemd-resolved.c
index 8e22041e4..fe2e78af7 100644
--- a/src/dns/nm-dns-systemd-resolved.c
+++ b/src/dns/nm-dns-systemd-resolved.c
@@ -422,6 +422,7 @@ update(NMDnsPlugin *            plugin,
     gs_free gpointer * interfaces_keys        = NULL;
     guint              interfaces_len;
     int                ifindex;
+    gpointer           pointer;
     NMDnsIPConfigData *ip_data;
     GHashTableIter     iter;
     guint              i;
@@ -463,7 +464,8 @@ update(NMDnsPlugin *            plugin,
      * resolved, and the current update doesn't contain that interface,
      * reset the resolved configuration for that ifindex. */
     g_hash_table_iter_init(&iter, priv->dirty_interfaces);
-    while (g_hash_table_iter_next(&iter, (gpointer *) &ifindex, NULL)) {
+    while (g_hash_table_iter_next(&iter, (gpointer *) &pointer, NULL)) {
+        ifindex = GPOINTER_TO_INT(pointer);
         if (!g_hash_table_contains(interfaces, GINT_TO_POINTER(ifindex))) {
             InterfaceConfig ic;