diff --git a/src/mesa/drivers/dri/i965/brw_vs_surface_state.c b/src/mesa/drivers/dri/i965/brw_vs_surface_state.c
index 72e37d4b467..fd7e56e50d5 100644
--- a/src/mesa/drivers/dri/i965/brw_vs_surface_state.c
+++ b/src/mesa/drivers/dri/i965/brw_vs_surface_state.c
@@ -56,7 +56,7 @@ brw_upload_pull_constants(struct brw_context *brw,
                           const struct brw_stage_prog_data *prog_data,
                           bool dword_pitch)
 {
-   int i;
+   unsigned i;
    uint32_t surf_index = prog_data->binding_table.pull_constants_start;
 
    if (!prog_data->nr_pull_params) {