diff --git a/src_assets/windows/assets/shaders/directx/include/base_vs.hlsl b/src_assets/windows/assets/shaders/directx/include/base_vs.hlsl
index ca71191c6ae..5fc9226bd4f 100644
--- a/src_assets/windows/assets/shaders/directx/include/base_vs.hlsl
+++ b/src_assets/windows/assets/shaders/directx/include/base_vs.hlsl
@@ -1,11 +1,11 @@
 #include "include/base_vs_types.hlsl"
 
 #if defined(LEFT_SUBSAMPLING)
-vertex_t generate_fullscreen_triangle_vertex(uint vertex_id, float subsample_offset, uint rotate_texture_steps)
+vertex_t generate_fullscreen_triangle_vertex(uint vertex_id, float subsample_offset, int rotate_texture_steps)
 #elif defined (TOPLEFT_SUBSAMPLING)
-vertex_t generate_fullscreen_triangle_vertex(uint vertex_id, float2 subsample_offset, uint rotate_texture_steps)
+vertex_t generate_fullscreen_triangle_vertex(uint vertex_id, float2 subsample_offset, int rotate_texture_steps)
 #else
-vertex_t generate_fullscreen_triangle_vertex(uint vertex_id, uint rotate_texture_steps)
+vertex_t generate_fullscreen_triangle_vertex(uint vertex_id, int rotate_texture_steps)
 #endif
 {
     vertex_t output;