diff --git a/src/app/mesh/qgsmeshtransformcoordinatesdockwidget.cpp b/src/app/mesh/qgsmeshtransformcoordinatesdockwidget.cpp
index 8b1f99a8d492..4af794cf77bd 100644
--- a/src/app/mesh/qgsmeshtransformcoordinatesdockwidget.cpp
+++ b/src/app/mesh/qgsmeshtransformcoordinatesdockwidget.cpp
@@ -131,13 +131,10 @@ void QgsMeshTransformCoordinatesDockWidget::calculate()
   if ( mCheckBoxZFromProjectTerrain->isChecked() )
   {
     mTransformVertices.setZFromTerrain( mCheckBoxZFromProjectTerrain->isChecked() );
-    mIsResultValid = mTransformVertices.calculate( mInputLayer, QgsProject::instance() );
-  }
-  else
-  {
-    mIsResultValid = mTransformVertices.calculate( mInputLayer );
   }
 
+  mIsResultValid = mTransformVertices.calculate( mInputLayer, QgsProject::instance() );
+
   mIsCalculated = true;
   mButtonApply->setEnabled( mIsResultValid );