diff --git a/src/Mod/Part/Gui/ShapeFromMesh.cpp b/src/Mod/Part/Gui/ShapeFromMesh.cpp
index 5d79b6ca4d..c570f6cf2b 100644
--- a/src/Mod/Part/Gui/ShapeFromMesh.cpp
+++ b/src/Mod/Part/Gui/ShapeFromMesh.cpp
@@ -28,7 +28,7 @@
 
 #include "ShapeFromMesh.h"
 #include "ui_ShapeFromMesh.h"
-#include <App/Application.h>
+#include <Base/UnitsApi.h>
 #include <App/DocumentObserver.h>
 #include <Gui/CommandT.h>
 #include <Gui/Selection.h>
@@ -46,8 +46,7 @@ ShapeFromMesh::ShapeFromMesh(QWidget* parent, Qt::WindowFlags fl)
 
     double STD_OCC_TOLERANCE = 1e-6;
 
-    ParameterGrp::handle hGrp = App::GetApplication().GetParameterGroupByPath("User parameter:BaseApp/Preferences/Units");
-    int decimals = hGrp->GetInt("Decimals");
+    int decimals = Base::UnitsApi::getDecimals();
     double tolerance_from_decimals = pow(10., -decimals);
 
     double minimal_tolerance = tolerance_from_decimals < STD_OCC_TOLERANCE ? STD_OCC_TOLERANCE : tolerance_from_decimals;