diff --git a/doomsday/Include/dd_share.h b/doomsday/Include/dd_share.h
index bcf120f488..4b4f8e684e 100644
--- a/doomsday/Include/dd_share.h
+++ b/doomsday/Include/dd_share.h
@@ -1078,6 +1078,7 @@ typedef struct
 #define DDPF_CAMERA			0x10	// Player is a cameraman.
 #define DDPF_LOCAL			0x20	// Player is local (e.g. player zero).
 #define DDPF_FIXMOM			0x40	// Server: send momentum to client.
+#define DDPF_NOCLIP			0x80	// Client: don't clip movement.
 
 #define PLAYERNAMELEN		81