diff --git a/src/aare/gui/panels/smargon_panel.py b/src/aare/gui/panels/smargon_panel.py
index 5e65966f..da20a50b 100644
--- a/src/aare/gui/panels/smargon_panel.py
+++ b/src/aare/gui/panels/smargon_panel.py
@@ -64,7 +64,8 @@ class SmargonPanel(QWidget):
         )
 
         grid_layout.addWidget(QLabel("Chi", parent=self), 1, 0)
-        self.chi_enter = NumberLineEdit(-0.2, 40, decimals=1, parent=self)
+        # Vincent says Chi is limited to 0 to 30
+        self.chi_enter = NumberLineEdit(-0.2, 30, decimals=1, parent=self)
         grid_layout.addWidget(self.chi_enter, 1, 1)
         grid_layout.addWidget(QLabel("°", parent=self), 1, 2)