diff --git a/drivers/gpu/drm/drm_modes.c b/drivers/gpu/drm/drm_modes.c
index 88232698d7a0..ac39835db8e7 100644
--- a/drivers/gpu/drm/drm_modes.c
+++ b/drivers/gpu/drm/drm_modes.c
@@ -2045,6 +2045,7 @@ int drm_mode_convert_umode(struct drm_device *dev,
 
 	return 0;
 }
+EXPORT_SYMBOL(drm_mode_convert_umode);
 
 /**
  * drm_mode_is_420_only - if a given videomode can be only supported in YCBCR420