diff --git a/source/blender/editors/space_outliner/outliner_tools.cc b/source/blender/editors/space_outliner/outliner_tools.cc
index 37c32aa46b8..6e38739a6fe 100644
--- a/source/blender/editors/space_outliner/outliner_tools.cc
+++ b/source/blender/editors/space_outliner/outliner_tools.cc
@@ -1043,6 +1043,14 @@ static void id_override_library_create_hierarchy_pre_process_fn(bContext *C,
     return;
   }
 
+  if (!ID_IS_OVERRIDABLE_LIBRARY_HIERARCHY(id_root_reference)) {
+    BKE_reportf(reports,
+                RPT_WARNING,
+                "Could not create library override from data-block '%s', as it is not overridable",
+                id_root_reference->name);
+    return;
+  }
+
   BLI_assert(do_hierarchy);
   UNUSED_VARS_NDEBUG(do_hierarchy);