diff --git a/debian/rules b/debian/rules
index 476c3bf..89e1a86 100755
--- a/debian/rules
+++ b/debian/rules
@@ -5,6 +5,7 @@
 VERSION := $(shell echo '$(DEBVERS)' | sed -e 's/[+-].*//' -e 's/~//g')
 
 export DH_VERBOSE=1
+export DEB_BUILD_HARDENING=1
 
 %:
 	dh --with autoreconf $@ --fail-missing