diff --git a/ks_includes/config.py b/ks_includes/config.py
index 253dbd17..09524350 100644
--- a/ks_includes/config.py
+++ b/ks_includes/config.py
@@ -351,7 +351,7 @@ class KlipperScreenConfig:
         saved_def = []
         found_saved = False
         if not path.exists(config_path):
-            return [None, None]
+            return ["", None]
         with open(config_path) as file:
             for line in file:
                 line = line.replace('\n', '')
@@ -485,10 +485,11 @@ class KlipperScreenConfig:
         else:
             user_def, saved_def = self.separate_saved_config(self.config_path)
 
-        extra_lb = "\n" if saved_def is not None else ""
-        contents = "%s\n%s%s\n%s\n%s\n%s\n" % (
-            user_def, self.do_not_edit_line, extra_lb, self.do_not_edit_prefix, "\n".join(save_output),
-            self.do_not_edit_prefix)
+        contents = (f"{user_def}\n"
+                    f"{self.do_not_edit_line}\n"
+                    f"{self.do_not_edit_prefix}\n"
+                    + '\n'.join(save_output) + f"\n"
+                    f"{self.do_not_edit_prefix}\n")
 
         if self.config_path != self.default_config_path:
             filepath = self.config_path