1 files changed, 1 insertions, 0 deletions
diff --git a/src/xsub.hpp b/src/xsub.hpp
index 0cf81b5..986f753 100644
--- a/src/xsub.hpp
+++ b/src/xsub.hpp
@@ -47,6 +47,7 @@ namespace xs
     protected:
 
         //  Overloads of functions from socket_base_t.
+        int xsetsockopt (int option_, const void *optval_, size_t optvallen_);
         void xattach_pipe (xs::pipe_t *pipe_, bool icanhasall_);
         int xsend (xs::msg_t *msg_, int flags_);
         bool xhas_out ();