diff --git a/debian/rules b/debian/rules
index 19a1234e1..bf7331a85 100755
--- a/debian/rules
+++ b/debian/rules
@@ -1,7 +1,7 @@
 #!/usr/bin/make -f
 
 export DH_VERBOSE=1
-export DEB_BUILD_MAINT_OPTIONS   = hardening=+all
+export DEB_BUILD_MAINT_OPTIONS=hardening=+all
 
 %:
 	dh $@