diff --git a/pytec/pytec/gui/view/ctrl_panel.py b/pytec/pytec/gui/view/ctrl_panel.py
index 9d41c62..707cbd7 100644
--- a/pytec/pytec/gui/view/ctrl_panel.py
+++ b/pytec/pytec/gui/view/ctrl_panel.py
@@ -169,6 +169,6 @@ class CtrlPanel(QObject):
         for postfilter_params in postfilter_data:
             channel = postfilter_params["channel"]
             with QSignalBlocker(self.params[channel]):
-                self.params[channel].child("thermistor", "rate").set_value_with_lock(
+                self.params[channel].child("postfilter", "rate").set_value_with_lock(
                     postfilter_params["rate"]
                 )
diff --git a/pytec/pytec/gui/view/param_tree.json b/pytec/pytec/gui/view/param_tree.json
index 624b880..f236fa9 100644
--- a/pytec/pytec/gui/view/param_tree.json
+++ b/pytec/pytec/gui/view/param_tree.json
@@ -186,7 +186,7 @@
          "title": "Thermistor Settings",
          "expanded": true,
          "type": "group",
-         "tip": "Settings of the connected thermistor\n- Parameters for the resistance to temperature conversion (with the B-Parameter equation)\n- Settings for the 50/60 Hz filter with the thermistor",
+         "tip": "Parameters for the resistance to temperature conversion with the B-Parameter equation",
          "children": [
             {
                "name": "t0",
@@ -247,10 +247,18 @@
                ],
                "tip": "The Beta Parameter",
                "lock": false
-            },
+            }
+         ]
+      },
+      {
+         "name": "postfilter",
+         "title": "50/60 Hz filter settings",
+         "type": "group",
+         "tip": "Settings for the 50/60 Hz filter with the thermistor",
+         "children": [
             {
                "name": "rate",
-               "title": "50/60 Hz filter rejection",
+               "title": "Rejection",
                "type": "list",
                "value": 16.67,
                "param": [