diff --git a/debian/rules b/debian/rules
index 7617090..3b9279a 100755
--- a/debian/rules
+++ b/debian/rules
@@ -4,6 +4,9 @@ export QT_SELECT=5
 
 # see FEATURE AREAS in dpkg-buildflags(1)
 export DEB_BUILD_MAINT_OPTIONS = hardening=+all
+export DEB_CFLAGS_MAINT_APPEND = -Wall
+export DEB_CXXFLAGS_MAINT_APPEND = -Wall
+export DEB_LDFLAGS_MAINT_APPEND = -Wl,--as-needed -Wl,-z,relro -Wl,-z,now -Wl,-z,noexecstack -Wl,-E
 
 # see ENVIRONMENT in dpkg-buildflags(1)
 # package maintainers to append CFLAGS