diff --git a/dcspy/qt_gui.py b/dcspy/qt_gui.py
index 285a324e8..0104fea0c 100644
--- a/dcspy/qt_gui.py
+++ b/dcspy/qt_gui.py
@@ -590,7 +590,7 @@ def _save_current_cell(self, currentRow: int, currentColumn: int, previousRow: i
         cell_combo = self.tw_gkeys.cellWidget(currentRow, currentColumn)
         self._cell_ctrl_content_changed(text=cell_combo.currentText(), widget=cell_combo, row=currentRow, col=currentColumn)
 
-    def _input_iface_changed(self, button: QRadioButton) -> None:
+    def _input_iface_changed(self) -> None:
         """
         Triggered when new input interface is selected.
 
@@ -601,7 +601,10 @@ def _input_iface_changed(self, button: QRadioButton) -> None:
             section = self._find_section_name(ctrl_name=current_cell_text)
             key_name = self._get_key_name_from_row_col(self.current_row, self.current_col)
             ctrl_key = self.ctrl_input[section][current_cell_text]
-            self.input_reqs[self.current_plane][key_name] = GuiPlaneInputRequest.from_control_key(ctrl_key=ctrl_key, rb_iface=button.objectName())
+            input_iface_name = self.bg_rb_input_iface.checkedButton().objectName()
+            custom_value = self.le_custom.text() if input_iface_name == 'rb_custom' else ''
+            self.input_reqs[self.current_plane][key_name] = GuiPlaneInputRequest.from_control_key(ctrl_key=ctrl_key, rb_iface=input_iface_name,
+                                                                                                  custom_value=custom_value)
 
     def _le_custom_text_edited(self) -> None:
         """Triggered when text is changed and user press enter or widget lose focus."""
@@ -611,8 +614,9 @@ def _le_custom_text_edited(self) -> None:
             key_name = self._get_key_name_from_row_col(self.current_row, self.current_col)
             ctrl_key = self.ctrl_input[section][current_cell_text]
             input_iface_name = self.bg_rb_input_iface.checkedButton().objectName()
+            custom_value = self.le_custom.text() if input_iface_name == 'rb_custom' else ''
             self.input_reqs[self.current_plane][key_name] = GuiPlaneInputRequest.from_control_key(ctrl_key=ctrl_key, rb_iface=input_iface_name,
-                                                                                                  custom_value=self.le_custom.text())
+                                                                                                  custom_value=custom_value)
 
     def _copy_cell_to_row(self) -> None:
         """Copy content of current cell to whole row."""