diff --git a/3d-viewer/dialogs/panel_preview_3d_model.cpp b/3d-viewer/dialogs/panel_preview_3d_model.cpp
index aadc5647e0..53693173c3 100644
--- a/3d-viewer/dialogs/panel_preview_3d_model.cpp
+++ b/3d-viewer/dialogs/panel_preview_3d_model.cpp
@@ -561,6 +561,8 @@ void PANEL_PREVIEW_3D_MODEL::onUnitsChanged( wxCommandEvent& aEvent )
     xoff->SetValue( formatOffsetValue( xoff_mm ) );
     yoff->SetValue( formatOffsetValue( yoff_mm ) );
     zoff->SetValue( formatOffsetValue( zoff_mm ) );
+
+    aEvent.Skip();
 }