diff --git a/Makefile b/Makefile
index 56e53f77c037..00b03727a7f7 100644
--- a/Makefile
+++ b/Makefile
@@ -2,7 +2,7 @@
 VERSION = 5
 PATCHLEVEL = 4
 SUBLEVEL = 271
-EXTRAVERSION =
+EXTRAVERSION = -hardened1
 NAME = Kleptomaniac Octopus
 
 # *DOCUMENTATION*