diff --git a/src/mesa/drivers/dri/i965/brw_blorp.cpp b/src/mesa/drivers/dri/i965/brw_blorp.cpp
index 6b3600d..616403b 100644
--- a/src/mesa/drivers/dri/i965/brw_blorp.cpp
+++ b/src/mesa/drivers/dri/i965/brw_blorp.cpp
@@ -107,7 +107,9 @@ brw_blorp_surface_info::set(struct brw_context *brw,
       break;
    default: {
       gl_format linear_format = _mesa_get_srgb_format_linear(mt->format);
-      if (is_render_target) {
+      if (is_render_target ||
+          mt->format == MESA_FORMAT_INTENSITY_FLOAT32 ||
+          mt->format == MESA_FORMAT_LUMINANCE_FLOAT32) {
          assert(brw->format_supported_as_render_target[linear_format]);
          this->brw_surfaceformat = brw->render_target_format[linear_format];
       } else {