diff --git a/source/blender/makesrna/intern/rna_material.cc b/source/blender/makesrna/intern/rna_material.cc
index c3bdcc1b352..f469d6927dc 100644
--- a/source/blender/makesrna/intern/rna_material.cc
+++ b/source/blender/makesrna/intern/rna_material.cc
@@ -1110,7 +1110,11 @@ void RNA_def_material(BlenderRNA *brna)
   RNA_def_property_clear_flag(prop, PROP_ANIMATABLE);
   RNA_def_property_ui_text(prop, "Use Nodes", "Use shader nodes to render the material");
   RNA_def_property_boolean_funcs(prop, "rna_Material_use_nodes_get", "rna_Material_use_nodes_set");
-  RNA_def_property_deprecated(prop, "Unused", 500, 600);
+  RNA_def_property_deprecated(prop,
+                              "Unused but kept for compatibility reasons. Setting the property "
+                              "has no effect, and getting it always returns True.",
+                              500,
+                              600);
 
   /* common */
   rna_def_animdata_common(srna);
diff --git a/source/blender/makesrna/intern/rna_world.cc b/source/blender/makesrna/intern/rna_world.cc
index 4b2eb299348..8bf43ff086f 100644
--- a/source/blender/makesrna/intern/rna_world.cc
+++ b/source/blender/makesrna/intern/rna_world.cc
@@ -262,7 +262,11 @@ void RNA_def_world(BlenderRNA *brna)
   RNA_def_property_flag(prop, PROP_CONTEXT_UPDATE);
   RNA_def_property_ui_text(prop, "Use Nodes", "Use shader nodes to render the world");
   RNA_def_property_boolean_funcs(prop, "rna_World_use_nodes_get", "rna_World_use_nodes_set");
-  RNA_def_property_deprecated(prop, "Unused", 500, 600);
+  RNA_def_property_deprecated(prop,
+                              "Unused but kept for compatibility reasons. Setting the property "
+                              "has no effect, and getting it always returns True.",
+                              500,
+                              600);
 
   /* Lightgroup Membership */
   prop = RNA_def_property(srna, "lightgroup", PROP_STRING, PROP_NONE);