diff --git a/src/video_core/renderer_opengl/present/filters.h b/src/video_core/renderer_opengl/present/filters.h
index 122ab7436..182a764c6 100644
--- a/src/video_core/renderer_opengl/present/filters.h
+++ b/src/video_core/renderer_opengl/present/filters.h
@@ -1,4 +1,5 @@
 // SPDX-FileCopyrightText: Copyright 2024 yuzu Emulator Project
+// SPDX-FileCopyrightText: Copyright 2025 citron Emulator Project
 // SPDX-License-Identifier: GPL-2.0-or-later
 
 #pragma once
@@ -11,6 +12,7 @@ namespace OpenGL {
 std::unique_ptr<WindowAdaptPass> MakeNearestNeighbor(const Device& device);
 std::unique_ptr<WindowAdaptPass> MakeBilinear(const Device& device);
 std::unique_ptr<WindowAdaptPass> MakeBicubic(const Device& device);
+std::unique_ptr<WindowAdaptPass> MakeLanczos(const Device& device);
 std::unique_ptr<WindowAdaptPass> MakeGaussian(const Device& device);
 std::unique_ptr<WindowAdaptPass> MakeScaleForce(const Device& device);