diff --git a/src/lib/ecore_drm2/ecore_drm2_private.h b/src/lib/ecore_drm2/ecore_drm2_private.h
index abf8b97ffb..1d3300ea11 100644
--- a/src/lib/ecore_drm2/ecore_drm2_private.h
+++ b/src/lib/ecore_drm2/ecore_drm2_private.h
@@ -766,7 +766,7 @@ struct _Ecore_Drm2_Output
    struct
      {
         const char *path;
-        int value, max;
+        double value, max;
         Ecore_Drm2_Backlight_Type type;
      } backlight;