diff --git a/src/gallium/frontends/dri/dri_helpers.h b/src/gallium/frontends/dri/dri_helpers.h
index af772ca2f6f..6f4dfb21a51 100644
--- a/src/gallium/frontends/dri/dri_helpers.h
+++ b/src/gallium/frontends/dri/dri_helpers.h
@@ -48,9 +48,6 @@ dri2_get_mapping_by_fourcc(int fourcc);
 const struct dri2_format_mapping *
 dri2_get_mapping_by_format(int format);
 
-enum pipe_format
-dri2_get_pipe_format_for_dri_format(int format);
-
 bool
 dri2_yuv_dma_buf_supported(struct dri_screen *screen,
                            const struct dri2_format_mapping *map);