diff --git a/samba.spec b/samba.spec
index cb82336..828afb2 100644
--- a/samba.spec
+++ b/samba.spec
@@ -858,7 +858,7 @@ for i in nmb smb winbind ; do
     install -m 0644 tmp$i.service %{buildroot}%{_unitdir}/$i.service
 done
 %if %with_clustering_support
-install -m 0755 ctdb/config/ctdb.service %{buildroot}%{_unitdir}
+install -m 0644 ctdb/config/ctdb.service %{buildroot}%{_unitdir}
 %endif
 
 # NetworkManager online/offline script