diff --git a/dlls/d3d9/tests/visual.c b/dlls/d3d9/tests/visual.c
index f873f3ae9b3..5b0955b4ea0 100644
--- a/dlls/d3d9/tests/visual.c
+++ b/dlls/d3d9/tests/visual.c
@@ -3160,7 +3160,7 @@ done:
 }
 
 static void generate_bumpmap_textures(IDirect3DDevice9 *device) {
-    unsigned int i, x, y;
+    int i, x, y;
     HRESULT hr;
     IDirect3DTexture9 *texture[2] = {NULL, NULL};
     D3DLOCKED_RECT locked_rect;