diff --git a/src/packet/register_super.rs b/src/packet/register_super.rs
index 9e792d6..58771a1 100644
--- a/src/packet/register_super.rs
+++ b/src/packet/register_super.rs
@@ -31,6 +31,7 @@ mod test {
     use crate::utils::gen_uuid;
 
     use self::peer::SdlanSock;
+    use crate::config::AF_INET;
     use crate::packet::Common;
     use crate::utils::Result;
 
@@ -47,7 +48,7 @@ mod test {
         let pkt1 = RegisterSuper {
             pass: "encrypt!",
             sock: Some(SdlanSock {
-                family: 0,
+                family: AF_INET,
                 port: 1,
                 // has_v6: true,
                 // v6_port: 2345,
diff --git a/src/peer.rs b/src/peer.rs
index 0e841c7..f624a85 100644
--- a/src/peer.rs
+++ b/src/peer.rs
@@ -222,6 +222,7 @@ impl PeerMap {
 
 #[cfg(test)]
 mod test {
+    use crate::config::AF_INET;
     use crate::utils::gen_uuid;
 
     use super::*;
@@ -233,14 +234,14 @@ mod test {
         let mut p = Peer::new();
         {
             let mut sl = p.sock.lock().unwrap();
-            sl.family = 0;
+            sl.family = AF_INET;
             sl.v4 = [1; 4];
             sl.port = 20;
         }
         pm.insert_peer(&id, Arc::new(p));
         if let Some(p2) = pm.find_peer_by_id(&id) {
             let pl = p2.sock.lock().unwrap();
-            assert_eq!(pl.family, 0);
+            assert_eq!(pl.family, crate::config::AF_INET);
             assert_eq!(pl.port, 20);
             assert_eq!(pl.v4, [1; 4]);
         } else {
@@ -248,7 +249,7 @@ mod test {
         }
 
         if let Some(p3) = pm.find_peer_by_sock(&SdlanSock {
-            family: 0,
+            family: AF_INET,
             port: 20,
             // has_v6: true,
             // v6_port: 30,
@@ -256,7 +257,7 @@ mod test {
             v6: [1; 16],
         }) {
             let pl = p3.sock.lock().unwrap();
-            assert_eq!(pl.family, 0);
+            assert_eq!(pl.family, AF_INET);
             assert_eq!(pl.port, 20);
             assert_eq!(pl.v4, [1; 4]);
         } else {