diff --git a/kdc/connect.c b/kdc/connect.c
index c7b9c6d8c..1f3ebaa9e 100644
--- a/kdc/connect.c
+++ b/kdc/connect.c
@@ -236,7 +236,7 @@ init_socket(struct descr *d, krb5_address *a, int family, int type, int port)
     krb5_error_code ret;
     struct sockaddr_storage __ss;
     struct sockaddr *sa = (struct sockaddr *)&__ss;
-    int sa_size;
+    int sa_size = sizeof(__ss);
 
     init_descr (d);