diff --git a/pipelines/fabric/src/main/resources/include/define.p4 b/pipelines/fabric/src/main/resources/include/define.p4
index 1522df1..176911e 100644
--- a/pipelines/fabric/src/main/resources/include/define.p4
+++ b/pipelines/fabric/src/main/resources/include/define.p4
@@ -26,7 +26,7 @@
 #define _TRUE true
 #endif
 #ifndef _FALSE
-#define _FALSE true
+#define _FALSE false
 #endif
 
 #ifndef _PKT_OUT_HDR_ANNOT