diff --git a/dlls/wined3d/buffer.c b/dlls/wined3d/buffer.c
index f76a9f6fcfc..5896fbcc20a 100644
--- a/dlls/wined3d/buffer.c
+++ b/dlls/wined3d/buffer.c
@@ -242,7 +242,7 @@ static BOOL wined3d_buffer_gl_create_buffer_object(struct wined3d_buffer_gl *buf
 
 static BOOL buffer_process_converted_attribute(struct wined3d_buffer *buffer,
         const enum wined3d_buffer_conversion_type conversion_type,
-        const struct wined3d_stream_info_element *attrib, DWORD *stride_this_run)
+        const struct wined3d_stream_info_element *attrib, UINT *stride_this_run)
 {
     const struct wined3d_format *format = attrib->format;
     BOOL ret = FALSE;
@@ -299,7 +299,7 @@ static BOOL buffer_process_converted_attribute(struct wined3d_buffer *buffer,
 #define WINED3D_BUFFER_FIXUP_XYZRHW     0x02
 
 static BOOL buffer_check_attribute(struct wined3d_buffer *This, const struct wined3d_stream_info *si,
-        const struct wined3d_state *state, UINT attrib_idx, DWORD fixup_flags, DWORD *stride_this_run)
+        const struct wined3d_state *state, UINT attrib_idx, DWORD fixup_flags, UINT *stride_this_run)
 {
     const struct wined3d_stream_info_element *attrib = &si->elements[attrib_idx];
     enum wined3d_format_id format;