diff --git a/src/nm-device.c b/src/nm-device.c
index 9a1ad148b..db96ccef4 100644
--- a/src/nm-device.c
+++ b/src/nm-device.c
@@ -667,7 +667,7 @@ reserve_shared_ip (void)
 	guint32 start = (guint32) ntohl (0x0a2a2b01); /* 10.42.43.1 */
 	guint32 count = 0;
 
-	while (g_hash_table_lookup (shared_ips, (gpointer) (start + count))) {
+	while (g_hash_table_lookup (shared_ips, GUINT_TO_POINTER (start + count))) {
 		count += ntohl (0x100);
 		if (count > ntohl (0xFE00)) {
 			nm_warning ("%s: ran out of shared IP addresses!", __func__);
@@ -675,7 +675,7 @@ reserve_shared_ip (void)
 		}
 	}
 
-	g_hash_table_insert (shared_ips, (gpointer) (start + count), GUINT_TO_POINTER (TRUE));
+	g_hash_table_insert (shared_ips, GUINT_TO_POINTER (start + count), GUINT_TO_POINTER (TRUE));
 	return start + count;
 }