diff --git a/src/slic3r/GUI/GLCanvas3D.hpp b/src/slic3r/GUI/GLCanvas3D.hpp
index 9653b138b..aec8a4a17 100644
--- a/src/slic3r/GUI/GLCanvas3D.hpp
+++ b/src/slic3r/GUI/GLCanvas3D.hpp
@@ -448,7 +448,7 @@ private:
 
         void set_flattening_data(const ModelObject* model_object);
 
-        void set_sla_support_data(ModelObject* model_object, const GLCanvas3D::Selection& selection);
+        void set_sla_support_data(ModelObject* model_object, const Selection& selection);
         bool mouse_event(SLAGizmoEventType action, const Vec2d& mouse_position = Vec2d::Zero(), bool shift_down = false);
         void delete_current_grabber(bool delete_all = false);
 
diff --git a/src/slic3r/GUI/GUI_ObjectManipulation.cpp b/src/slic3r/GUI/GUI_ObjectManipulation.cpp
index d186f7057..fb75414ed 100644
--- a/src/slic3r/GUI/GUI_ObjectManipulation.cpp
+++ b/src/slic3r/GUI/GUI_ObjectManipulation.cpp
@@ -367,7 +367,7 @@ void ObjectManipulation::change_rotation_value(const Vec3d& rotation)
     if (selection.is_single_full_instance() || selection.requires_local_axes())
 		transformation_type.set_independent();
 	if (selection.is_single_full_instance()) {
-        //FIXME GLCanvas3D::Selection::rotate() does not process absoulte rotations correctly: It does not recognize the axis index, which was changed.
+        //FIXME Selection::rotate() does not process absoulte rotations correctly: It does not recognize the axis index, which was changed.
 		// transformation_type.set_absolute();
 		transformation_type.set_local();
 	}