1 files changed, 0 insertions, 1 deletions
diff --git a/src/nng.h b/src/nng.h
index e013b9df..d260e5fd 100644
--- a/src/nng.h
+++ b/src/nng.h
@@ -355,7 +355,6 @@ NNG_DECL int nng_pipe_close(nng_pipe);
 enum nng_flag_enum {
 	NNG_FLAG_ALLOC    = 1, // Recv to allocate receive buffer.
 	NNG_FLAG_NONBLOCK = 2, // Non-blocking operations.
-	NNG_FLAG_DRYRUN   = 4, // Setopt dry-run (internally used).
 };
 
 // Protocol numbers.  These are to be used with nng_socket_create().