diff --git a/src/Mod/Mesh/Gui/MeshEditor.cpp b/src/Mod/Mesh/Gui/MeshEditor.cpp
index 73eb308b8..71625fef4 100644
--- a/src/Mod/Mesh/Gui/MeshEditor.cpp
+++ b/src/Mod/Mesh/Gui/MeshEditor.cpp
@@ -61,7 +61,6 @@
 #include <Gui/View3DInventorViewer.h>
 
 using namespace MeshGui;
-using namespace Quarter;
 
 PROPERTY_SOURCE(MeshGui::ViewProviderFace, Gui::ViewProviderDocumentObject)