diff --git a/pytec/pytec/gui/view/param_tree.json b/pytec/pytec/gui/view/param_tree.json
index 452778e..9075d4d 100644
--- a/pytec/pytec/gui/view/param_tree.json
+++ b/pytec/pytec/gui/view/param_tree.json
@@ -141,7 +141,7 @@
                      "step": 0.1,
                      "limits": [
                         0,
-                        5
+                        4
                      ],
                      "siPrefix": true,
                      "compactHeight": false,
@@ -365,7 +365,7 @@
                      "compactHeight": false,
                      "step": 100,
                      "limits": [
-                        -2000,
+                        0,
                         2000
                      ],
                      "pid_autotune": [