diff --git a/manifest.yaml b/manifest.yaml
index d955dd1..b20c913 100644
--- a/manifest.yaml
+++ b/manifest.yaml
@@ -21,6 +21,7 @@ dublin_core:
   modified: '2018-06-08'
   publisher: 'BCS'
   relation:
+    - 'hi/glt'
     - 'hi/ulb'
     - 'hi/tn'
     - 'hi/tq'