diff --git a/include/linux/dccp.h b/include/linux/dccp.h
index 010e2d87ed75..d638e85dc501 100644
--- a/include/linux/dccp.h
+++ b/include/linux/dccp.h
@@ -279,8 +279,6 @@ enum dccp_state {
 	DCCP_MAX_STATES
 };
 
-#define DCCP_STATE_MASK 0x1f
-
 enum {
 	DCCPF_OPEN	      = TCPF_ESTABLISHED,
 	DCCPF_REQUESTING      = TCPF_SYN_SENT,