diff --git a/test/update_test.rb b/test/update_test.rb
index cfaae5a1..e3969736 100755
--- a/test/update_test.rb
+++ b/test/update_test.rb
@@ -63,6 +63,8 @@ def default_SetDesktopPattern_stubs
       allow(::File).to receive(:write)
       allow(::FileUtils).to receive(:chmod)
       allow(::File).to receive(:exist?).and_return(true)
+      expect(Yast::SCR).to receive(:Execute).with(Yast::Path.new(".target.bash_output"), /^tar /).
+        and_return({"exit" => 0})
     end
 
     it "create tarball including given name with all paths added" do