diff --git a/debian/changelog b/debian/changelog
index fcf6e1b..c9bdd1e 100644
--- a/debian/changelog
+++ b/debian/changelog
@@ -4,13 +4,14 @@
   * Drop debian/source/options -- no longer needed.
   * debian/rules:
     + Drop obsolete override_dh_builddeb.
-    + Add CPPFLAGS for fix build build warning.
+    + Use hardening=+all flags.
+    + Drop override_dh_installman.
   * debian/copyright: update dates.
   * debian/control:
     + Bump Standards-Version to 3.9.7. (no changes needed)
     + Use https on Vcs-Git.
 
- -- Mateusz Łukasik <mati75@linuxmint.pl>  Sat, 23 Jan 2016 18:36:48 +0100
+ -- Mateusz Łukasik <mati75@linuxmint.pl>  Wed, 02 Mar 2016 18:35:34 +0100
 
 openbox-menu (0.7.0-1) unstable; urgency=medium
 
diff --git a/debian/rules b/debian/rules
index 7c314fc..f77f957 100755
--- a/debian/rules
+++ b/debian/rules
@@ -1,13 +1,9 @@
 #!/usr/bin/make -f
 export DEB_BUILD_OPTIONS=nocheck
-
-export CPPFLAGS:=$(shell dpkg-buildflags --get CPPFLAGS)
+export DEB_BUILD_MAINT_OPTIONS = hardening=+all
 
 %:
 	dh  $@
 
 override_dh_auto_install:
 	$(MAKE) install BINDIR=$(CURDIR)/debian/openbox-menu/usr/bin
-
-override_dh_installman:
-	dh_installman