diff --git a/debian/rules b/debian/rules
index 7e0b6da..cc094b9 100755
--- a/debian/rules
+++ b/debian/rules
@@ -4,6 +4,7 @@
 #export DH_VERBOSE=1
 
 %:
+	DEB_LDFLAGS_SET='-Wl,-z,relro' \
 	dh $@
 
 override_dh_auto_configure: