diff --git a/tests/d3d12.c b/tests/d3d12.c
index 55148615..e877af51 100644
--- a/tests/d3d12.c
+++ b/tests/d3d12.c
@@ -15498,7 +15498,6 @@ static void test_srv_component_mapping(void)
         float4 main(float4 position : SV_POSITION) : SV_Target
         {
             float2 p;
-        D3D12_SUBRESOURCE_DATA data;
 
             p.x = position.x / 32.0f;
             p.y = position.y / 32.0f;