diff --git a/drivers/gpu/drm/i915/intel_csr.c b/drivers/gpu/drm/i915/intel_csr.c
index 84a0c85471c271b06bc0238fcc4773704fada0ba..e9eb867698d344953e5c87f7c2e4ec00ccfbbc20 100644
--- a/drivers/gpu/drm/i915/intel_csr.c
+++ b/drivers/gpu/drm/i915/intel_csr.c
@@ -172,7 +172,7 @@ static const struct stepping_info skl_stepping_info[] = {
 	{'G', '0'}, {'H', '0'}, {'I', '0'}
 };
 
-static struct stepping_info bxt_stepping_info[] = {
+static const struct stepping_info bxt_stepping_info[] = {
 	{'A', '0'}, {'A', '1'}, {'A', '2'},
 	{'B', '0'}, {'B', '1'}, {'B', '2'}
 };