diff --git a/klippy/klippy.py b/klippy/klippy.py
index ba6b4579..2b98fda6 100644
--- a/klippy/klippy.py
+++ b/klippy/klippy.py
@@ -50,9 +50,10 @@ class ConfigWrapper:
     error = ConfigParser.Error
     class sentinel:
         pass
-    def __init__(self, printer, fileconfig, section):
+    def __init__(self, printer, fileconfig, access_tracking, section):
         self.printer = printer
         self.fileconfig = fileconfig
+        self.access_tracking = access_tracking
         self.section = section
     def get_printer(self):
         return self.printer
@@ -63,8 +64,7 @@ class ConfigWrapper:
         if (default is not self.sentinel
             and not self.fileconfig.has_option(self.section, option)):
             return default
-        self.printer.all_config_options[
-            (self.section.lower(), option.lower())] = 1
+        self.access_tracking[(self.section.lower(), option.lower())] = 1
         try:
             v = parser(self.section, option)
         except self.error as e:
@@ -108,7 +108,8 @@ class ConfigWrapper:
                 " is not a valid choice" % (c, option, self.section))
         return choices[c]
     def getsection(self, section):
-        return ConfigWrapper(self.printer, self.fileconfig, section)
+        return ConfigWrapper(self.printer, self.fileconfig,
+                             self.access_tracking, section)
     def has_section(self, section):
         return self.fileconfig.has_section(section)
     def get_prefix_sections(self, prefix):
@@ -137,7 +138,6 @@ class Printer:
         self.stats_timer = self.reactor.register_timer(self._stats)
         self.connect_timer = self.reactor.register_timer(
             self._connect, self.reactor.NOW)
-        self.all_config_options = {}
         self.state_message = message_startup
         self.is_shutdown = False
         self.async_shutdown_msg = ""
@@ -211,7 +211,8 @@ class Printer:
         if self.bglogger is not None:
             ConfigLogger(fileconfig, self.bglogger)
         # Create printer components
-        config = ConfigWrapper(self, fileconfig, 'printer')
+        access_tracking = {}
+        config = ConfigWrapper(self, fileconfig, access_tracking, 'printer')
         for m in [pins, heater, mcu]:
             m.add_printer_objects(config)
         for section in fileconfig.sections():
@@ -219,7 +220,7 @@ class Printer:
         for m in [toolhead]:
             m.add_printer_objects(config)
         # Validate that there are no undefined parameters in the config file
-        valid_sections = { s: 1 for s, o in self.all_config_options }
+        valid_sections = { s: 1 for s, o in access_tracking }
         for section_name in fileconfig.sections():
             section = section_name.lower()
             if section not in valid_sections and section not in self.objects:
@@ -227,7 +228,7 @@ class Printer:
                     "Section '%s' is not a valid config section" % (section,))
             for option in fileconfig.options(section_name):
                 option = option.lower()
-                if (section, option) not in self.all_config_options:
+                if (section, option) not in access_tracking:
                     raise self.config_error(
                         "Option '%s' is not valid in section '%s'" % (
                             option, section))