diff --git a/config.h.in b/config.h.in
index b4e36d24a..57abe4964 100644
--- a/config.h.in
+++ b/config.h.in
@@ -170,6 +170,3 @@
 
 /* Define if you have the m library (-lm).  */
 #undef HAVE_LIBM
-
-/* Define if you have the socket library (-lsocket).  */
-#undef HAVE_LIBSOCKET