diff --git a/src/util/network.c b/src/util/network.c
index 4cb6bfeceb7670fbffc3d4a30dba59f805ddf8a1..de22ded6b88b1cc4660c5bb9c943720c07ac1ffa 100644
--- a/src/util/network.c
+++ b/src/util/network.c
@@ -268,7 +268,7 @@ int virSocketCheckNetmask(virSocketAddrPtr addr1, virSocketAddrPtr addr2,
                 return(0);
         }
 
-    } else if (addr1->data.stor.ss_family == AF_INET) {
+    } else if (addr1->data.stor.ss_family == AF_INET6) {
         virIPv6Addr t1, t2, tm;
 
         if ((getIPv6Addr(addr1, &t1) < 0) ||