diff --git a/asynnet.c b/asynnet.c
index 3de2be75..33b248da 100644
--- a/asynnet.c
+++ b/asynnet.c
@@ -433,6 +433,7 @@ int ANETinfo(int handle, char *hostname, int hostnameLen)
   if (con == NULL) {
     return ANETDISCONNECTED;
   } else {
+    len = sizeof sin;
     if (getpeername(con->socket, (struct sockaddr *) &sin, &len) < 0) {
       return ANETSOCKERROR;
     }