diff --git a/src/glx/glxextensions.h b/src/glx/glxextensions.h
index 3523998babd..23c6fd1efae 100644
--- a/src/glx/glxextensions.h
+++ b/src/glx/glxextensions.h
@@ -60,7 +60,6 @@ enum
    ATI_pixel_format_float_bit,
    INTEL_swap_event_bit,
    MESA_copy_sub_buffer_bit,
-   MESA_depth_float_bit,
    MESA_query_renderer_bit,
    MESA_swap_control_bit,
    MESA_swap_frame_usage_bit,