diff --git a/src/libslic3r/GCode/ConflictChecker.cpp b/src/libslic3r/GCode/ConflictChecker.cpp
index cf4fe751a..82d4504ae 100644
--- a/src/libslic3r/GCode/ConflictChecker.cpp
+++ b/src/libslic3r/GCode/ConflictChecker.cpp
@@ -32,7 +32,6 @@ inline Grids line_rasterization(const Line &line, int64_t xdist = RasteXDistance
     Point     rayStart     = line.a;
     Point     rayEnd       = line.b;
     IndexPair currentVoxel = point_map_grid_index(rayStart, xdist, ydist);
-    IndexPair firstVoxel   = currentVoxel;
     IndexPair lastVoxel    = point_map_grid_index(rayEnd, xdist, ydist);
 
     Point ray = rayEnd - rayStart;
diff --git a/src/slic3r/GUI/GLCanvas3D.cpp b/src/slic3r/GUI/GLCanvas3D.cpp
index 934cd975d..4a3732fe9 100644
--- a/src/slic3r/GUI/GLCanvas3D.cpp
+++ b/src/slic3r/GUI/GLCanvas3D.cpp
@@ -7493,12 +7493,12 @@ void GLCanvas3D::_set_warning_notification(EWarning warning, bool state)
             const PrintObject* obj2 = reinterpret_cast<const PrintObject*>(conflict_result->_obj2);
             auto     mo = obj2->model_object();
             ObjectID id = mo->id();
-            auto     action_fn = [this, id](wxEvtHandler*) {
+            auto     action_fn = [id](wxEvtHandler*) {
                 auto& objects = wxGetApp().model().objects;
                 auto  iter = id.id ? std::find_if(objects.begin(), objects.end(), [id](auto o) { return o->id() == id; }) : objects.end();
                 if (iter != objects.end()) {
                     const unsigned int obj_idx = std::distance(objects.begin(), iter);
-                    wxGetApp().CallAfter([this, obj_idx]() {
+                    wxGetApp().CallAfter([obj_idx]() {
                         wxGetApp().plater()->select_view_3D("3D");
                         wxGetApp().plater()->canvas3D()->get_selection().add_object(obj_idx, true);
                         wxGetApp().obj_list()->update_selections();