diff --git a/companion/src/helpers.cpp b/companion/src/helpers.cpp
index f55237aff..cef825f3d 100644
--- a/companion/src/helpers.cpp
+++ b/companion/src/helpers.cpp
@@ -233,7 +233,7 @@ void CurveGroup::update()
   curveTypeCB->setCurrentIndex(found);
 
   if (curve.type == CurveReference::CURVE_REF_DIFF || curve.type == CurveReference::CURVE_REF_EXPO) {
-    curveGVarCB->show();
+    curveGVarCB->setVisible(GetCurrentFirmware()->getCapability(Gvars));
     if (curve.value > 100 || curve.value < -100) {
       curveGVarCB->setChecked(true);
       if (lastType != CurveReference::CURVE_REF_DIFF && lastType != CurveReference::CURVE_REF_EXPO) {