diff --git a/data/shaders/sunlightshadow.frag b/data/shaders/sunlightshadow.frag
index 311889ab0..194a68333 100644
--- a/data/shaders/sunlightshadow.frag
+++ b/data/shaders/sunlightshadow.frag
@@ -16,6 +16,7 @@ uniform mat4 ProjectionMatrix;
 uniform mat4 InverseViewMatrix;
 uniform mat4 InverseProjectionMatrix;
 uniform mat4 ShadowViewProjMatrixes[4];
+uniform vec2 screen;
 #else
 layout (std140) uniform MatrixesData
 {