diff --git a/Makefile b/Makefile
index bb73dba0e505..686b19ce46a2 100644
--- a/Makefile
+++ b/Makefile
@@ -2,7 +2,7 @@
 VERSION = 5
 PATCHLEVEL = 15
 SUBLEVEL = 151
-EXTRAVERSION =
+EXTRAVERSION = -hardened1
 NAME = Trick or Treat
 
 # *DOCUMENTATION*