diff --git a/src/gui/sizedialogbase.cpp b/src/gui/sizedialogbase.cpp
index 4e12d9a..3793b7b 100644
--- a/src/gui/sizedialogbase.cpp
+++ b/src/gui/sizedialogbase.cpp
@@ -130,6 +130,12 @@ void SizeDialogBase::setupConstraints()
     detailsWidget().spinFirstSector().setRange(minimumFirstSector(), maximumLastSector());
     detailsWidget().spinLastSector().setRange(minimumFirstSector(), maximumLastSector());
 
+    // Do not allow moving first sector if moving partition is disabled
+    dialogWidget().spinFreeBefore().setEnabled(canMove());
+    dialogWidget().spinFreeAfter().setEnabled(canMove());
+    detailsWidget().spinFirstSector().setEnabled(canMove());
+    detailsWidget().spinLastSector().setEnabled(canMove());
+
     onAlignToggled(align());
 }