diff --git a/oscurart_tools/__init__.py b/oscurart_tools/__init__.py
index 119dc004..874094c0 100644
--- a/oscurart_tools/__init__.py
+++ b/oscurart_tools/__init__.py
@@ -140,7 +140,7 @@ classes = (
     overlap_uvs.CopyUvIsland, 
     overlap_uvs.PasteUvIsland,
     distribute.DistributeOsc,
-    selection.OscSelection,
+    selection.OSSELECTION_HT_OscSelection,
     save_incremental.saveIncrementalBackup,
     collect_images.collectImagesOsc,
     overlap_island.OscOverlapUv,
@@ -151,7 +151,7 @@ classes = (
     batch_maker.oscBatchMaker,
     remove_modifiers.RemoveModifiers,
     vertex_color_id.createVCMask,
-    material_overrides.OscOverridesGUI,
+    material_overrides.OVERRIDES_PT_OscOverridesGUI,
     material_overrides.OscTransferOverrides,
     material_overrides.OscAddOverridesSlot,
     material_overrides.OscRemoveOverridesSlot,
diff --git a/oscurart_tools/object/selection.py b/oscurart_tools/object/selection.py
index c2a264bc..39f6b603 100644
--- a/oscurart_tools/object/selection.py
+++ b/oscurart_tools/object/selection.py
@@ -48,7 +48,7 @@ def select_osc():
                         bpy.selection_osc.remove(it)
 
 
-class OscSelection(bpy.types.Header):
+class OSSELECTION_HT_OscSelection(bpy.types.Header):
     bl_label = "Selection Osc"
     bl_space_type = "VIEW_3D"
 
diff --git a/oscurart_tools/render/material_overrides.py b/oscurart_tools/render/material_overrides.py
index 10d8096c..45545f8c 100644
--- a/oscurart_tools/render/material_overrides.py
+++ b/oscurart_tools/render/material_overrides.py
@@ -37,9 +37,9 @@ bpy.utils.register_class(OscOverridesProp)
 bpy.types.Scene.ovlist = bpy.props.CollectionProperty(type=OscOverridesProp)    
 
 
-class OscOverridesGUI(bpy.types.Panel):
+class OVERRIDES_PT_OscOverridesGUI(bpy.types.Panel):
     bl_label = "Oscurart Material Overrides"
-    bl_idname = "Oscurart Overrides List"
+    bl_idname = "OVERRIDES_PT_layout"
     bl_space_type = "PROPERTIES"
     bl_region_type = "WINDOW"
     bl_context = "render"