diff --git a/src/PlanView/SurveyItemEditor.qml b/src/PlanView/SurveyItemEditor.qml
index 7c49b509bd2201bef424ddd704421b86aea5f325..5f68e3dccdcfa2674edd1de43f3c6baa521b8a9f 100644
--- a/src/PlanView/SurveyItemEditor.qml
+++ b/src/PlanView/SurveyItemEditor.qml
@@ -214,6 +214,7 @@ Rectangle {
                 onActivated: {
                     if (index == _gridTypeManual) {
                         missionItem.manualGrid.value = true
+                        missionItem.fixedValueIsAltitude.value = true
                     } else if (index == _gridTypeCustomCamera) {
                         missionItem.manualGrid.value = false
                         missionItem.camera.value = gridTypeCombo.textAt(index)