diff --git a/doc/classes/EditorNode3DGizmo.xml b/doc/classes/EditorNode3DGizmo.xml
index c804bb70e04..60c329935a6 100644
--- a/doc/classes/EditorNode3DGizmo.xml
+++ b/doc/classes/EditorNode3DGizmo.xml
@@ -135,7 +135,7 @@
 		</method>
 		<method name="add_mesh">
 			<return type="void" />
-			<argument index="0" name="mesh" type="ArrayMesh" />
+			<argument index="0" name="mesh" type="Mesh" />
 			<argument index="1" name="material" type="Material" default="null" />
 			<argument index="2" name="transform" type="Transform3D" default="Transform3D(1, 0, 0, 0, 1, 0, 0, 0, 1, 0, 0, 0)" />
 			<argument index="3" name="skeleton" type="SkinReference" default="null" />
diff --git a/editor/plugins/node_3d_editor_gizmos.cpp b/editor/plugins/node_3d_editor_gizmos.cpp
index 154f9bd6b73..60ba98a706a 100644
--- a/editor/plugins/node_3d_editor_gizmos.cpp
+++ b/editor/plugins/node_3d_editor_gizmos.cpp
@@ -244,8 +244,10 @@ void EditorNode3DGizmo::Instance::create_instance(Node3D *p_base, bool p_hidden)
 	RS::get_singleton()->instance_geometry_set_flag(instance, RS::INSTANCE_FLAG_IGNORE_OCCLUSION_CULLING, true);
 }
 
-void EditorNode3DGizmo::add_mesh(const Ref<ArrayMesh> &p_mesh, const Ref<Material> &p_material, const Transform3D &p_xform, const Ref<SkinReference> &p_skin_reference) {
+void EditorNode3DGizmo::add_mesh(const Ref<Mesh> &p_mesh, const Ref<Material> &p_material, const Transform3D &p_xform, const Ref<SkinReference> &p_skin_reference) {
 	ERR_FAIL_COND(!spatial_node);
+	ERR_FAIL_COND_MSG(!p_mesh.is_valid(), "EditorNode3DGizmo.add_mesh() requires a valid Mesh resource.");
+
 	Instance ins;
 
 	ins.mesh = p_mesh;
diff --git a/editor/plugins/node_3d_editor_gizmos.h b/editor/plugins/node_3d_editor_gizmos.h
index 56e4ad55188..cf9a464b696 100644
--- a/editor/plugins/node_3d_editor_gizmos.h
+++ b/editor/plugins/node_3d_editor_gizmos.h
@@ -45,7 +45,7 @@ class EditorNode3DGizmo : public Node3DGizmo {
 
 	struct Instance {
 		RID instance;
-		Ref<ArrayMesh> mesh;
+		Ref<Mesh> mesh;
 		Ref<Material> material;
 		Ref<SkinReference> skin_reference;
 		bool extra_margin = false;
@@ -95,7 +95,7 @@ protected:
 public:
 	void add_lines(const Vector<Vector3> &p_lines, const Ref<Material> &p_material, bool p_billboard = false, const Color &p_modulate = Color(1, 1, 1));
 	void add_vertices(const Vector<Vector3> &p_vertices, const Ref<Material> &p_material, Mesh::PrimitiveType p_primitive_type, bool p_billboard = false, const Color &p_modulate = Color(1, 1, 1));
-	void add_mesh(const Ref<ArrayMesh> &p_mesh, const Ref<Material> &p_material = Ref<Material>(), const Transform3D &p_xform = Transform3D(), const Ref<SkinReference> &p_skin_reference = Ref<SkinReference>());
+	void add_mesh(const Ref<Mesh> &p_mesh, const Ref<Material> &p_material = Ref<Material>(), const Transform3D &p_xform = Transform3D(), const Ref<SkinReference> &p_skin_reference = Ref<SkinReference>());
 	void add_collision_segments(const Vector<Vector3> &p_lines);
 	void add_collision_triangles(const Ref<TriangleMesh> &p_tmesh);
 	void add_unscaled_billboard(const Ref<Material> &p_material, real_t p_scale = 1, const Color &p_modulate = Color(1, 1, 1));