diff --git a/pipelines/fabric/src/main/resources/include/define.p4 b/pipelines/fabric/src/main/resources/include/define.p4
index f4e5b56..163c2ab 100644
--- a/pipelines/fabric/src/main/resources/include/define.p4
+++ b/pipelines/fabric/src/main/resources/include/define.p4
@@ -46,8 +46,8 @@
 
 const bit<4> IPV4_MIN_IHL = 5;
 
-#ifndef CPU_PORT
-const port_num_t CPU_PORT = 255;
+#ifndef _PKT_OUT_HDR_ANNOT_
+#define _PKT_OUT_HDR_ANNOT_
 #endif
 
 const fwd_type_t FWD_BRIDGING = 0;