diff --git a/pytec/pytec/gui/view/ctrl_panel.py b/pytec/pytec/gui/view/ctrl_panel.py
index bec6dba..d578727 100644
--- a/pytec/pytec/gui/view/ctrl_panel.py
+++ b/pytec/pytec/gui/view/ctrl_panel.py
@@ -53,7 +53,7 @@ class CtrlPanel(QObject):
                 param.child(*handle[0]).sigActivated.connect(handle[1])
 
             param.child("output", "control_method").sigValueChanged.connect(
-                lambda param, value: param.child("i_set").show(
+                lambda param, value: param.child("i_set").setWritable(
                     value == "constant_current"
                 )
             )