diff --git a/include/dix-config.h.in b/include/dix-config.h.in
index 2b9f273d7..69dc674a9 100644
--- a/include/dix-config.h.in
+++ b/include/dix-config.h.in
@@ -222,6 +222,9 @@
 /* Support IPv6 for TCP connections */
 #undef IPv6
 
+/* Support os-specific local connections */
+#undef LOCALCONN
+
 /* Support MIT Misc extension */
 #undef MITMISC