diff --git a/scene/3d/baked_lightmap.cpp b/scene/3d/baked_lightmap.cpp
index 425857dde4..144d66df93 100644
--- a/scene/3d/baked_lightmap.cpp
+++ b/scene/3d/baked_lightmap.cpp
@@ -1055,7 +1055,7 @@ float BakedLightmap::get_capture_cell_size() const {
 void BakedLightmap::set_extents(const Vector3 &p_extents) {
 	extents = p_extents;
 	update_gizmo();
-	_change_notify("bake_extents");
+	_change_notify("extents");
 }
 
 Vector3 BakedLightmap::get_extents() const {