diff --git a/metadata/cube.xml.in b/metadata/cube.xml.in
index 6a9fba4..46a7be9 100644
--- a/metadata/cube.xml.in
+++ b/metadata/cube.xml.in
@@ -71,6 +71,7 @@
            <option name="skydome_image" type="string">
                <_short>Skydome Image</_short>
                <_long>Image to use as texture for the skydome</_long>
+               <hints>file;image;</hints>
            </option>
            <option name="skydome_animated" type="bool">
                <_short>Animate Skydome</_short>