diff --git a/main.py b/main.py
index a4498c3e..fb76eb02 100755
--- a/main.py
+++ b/main.py
@@ -107,6 +107,7 @@ def build(self):
         if self.config.get('Advanced Settings', 'maxFeedrate') == '700':
             self.data.message_queue.put("Message: This update will increase the maximum feedrate of your machine. You can adjust this value under the Advanced settings.")
             self.config.set('Advanced Settings', 'maxFeedrate', '800')
+            self.config.write()
         
         self.data.comport = self.config.get('Maslow Settings', 'COMport')
         self.data.gcodeFile = self.config.get('Maslow Settings', 'openFile')