diff --git a/ldapclient.c b/ldapclient.c
index d03b345..8d72761 100644
--- a/ldapclient.c
+++ b/ldapclient.c
@@ -60,7 +60,7 @@ usage:
     return 0;
   }
   for (durchlauf=0; durchlauf<n; ++durchlauf) {
-    sock=socket_tcp4();
+    sock=socket_tcp4b();
     {
       char ip[4];
       if (argv[1][scan_ip4(argv[1],ip)]) goto usage;
diff --git a/ldapclient_str.c b/ldapclient_str.c
index a24293e..8cfd200 100644
--- a/ldapclient_str.c
+++ b/ldapclient_str.c
@@ -44,7 +44,7 @@ usage:
     buffer_putsflush(buffer_2,"usage: ldapclient_src ip baseObject Attrib Prefix\n");
     return 0;
   }
-  sock=socket_tcp4();
+  sock=socket_tcp4b();
   {
     char ip[4];
     if (argv[1][scan_ip4(argv[1],ip)]) goto usage;
diff --git a/tinyldap.c b/tinyldap.c
index 07950d4..18711a1 100644
--- a/tinyldap.c
+++ b/tinyldap.c
@@ -1485,7 +1485,7 @@ int main(int argc,char* argv[]) {
 #endif
 
 #ifdef STANDALONE
-  if ((sock=socket_tcp6())==-1) {
+  if ((sock=socket_tcp6b())==-1) {
     buffer_putsflush(buffer_2,"socket failed!\n");
     exit(1);
   }