1 files changed, 1 insertions, 0 deletions
diff --git a/src/msg.hpp b/src/msg.hpp
index 2111bf1..1363e78 100644
--- a/src/msg.hpp
+++ b/src/msg.hpp
@@ -48,6 +48,7 @@ namespace zmq
         enum
         {
             label = 1,
+            command = 2,
             shared = 64,
             more = 128
         };