diff --git a/klamath/records.py b/klamath/records.py
index 0fbcb4d..30c8cc3 100644
--- a/klamath/records.py
+++ b/klamath/records.py
@@ -306,7 +306,7 @@ class SOFTFENCE(NoDataRecord):
 
 
 class HARDFENCE(NoDataRecord):
-    tag = 0x3f00
+    tag = 0x3e00
 
 
 class SOFTWIRE(NoDataRecord):