diff --git a/debian/rules b/debian/rules
index cf8f103..3b7418e 100755
--- a/debian/rules
+++ b/debian/rules
@@ -5,4 +5,4 @@ export PYBUILD_NAME=openwebrx
 	dh $@ --with python3 --buildsystem=pybuild --with systemd
 
 override_dh_strip_nondeterminism:
-    dh_strip_nondeterminism -X.png
+	dh_strip_nondeterminism -X.png