diff --git a/src/mesa/drivers/dri/i965/intel_mipmap_tree.c b/src/mesa/drivers/dri/i965/intel_mipmap_tree.c
index 8d55429b060..984529d883b 100644
--- a/src/mesa/drivers/dri/i965/intel_mipmap_tree.c
+++ b/src/mesa/drivers/dri/i965/intel_mipmap_tree.c
@@ -842,6 +842,7 @@ make_surface(struct brw_context *brw, GLenum target, mesa_format format,
    mt->format = format;
    mt->aux_state = NULL;
    mt->cpp = isl_format_get_layout(mt->surf.format)->bpb / 8;
+   mt->compressed = _mesa_is_format_compressed(format);
 
    return mt;