1 files changed, 3 insertions, 0 deletions
diff --git a/src/options.hpp b/src/options.hpp
index 47a0d63..647e811 100644
--- a/src/options.hpp
+++ b/src/options.hpp
@@ -60,6 +60,9 @@ namespace zmq
         //  Interval between attempts to reconnect, in milliseconds.
         int reconnect_ivl;
 
+        //  Maximum backlog for pending connections.
+        int backlog;
+
         //  These options are never set by the user directly. Instead they are
         //  provided by the specific socket type.
         bool requires_in;