diff --git a/installer/data/mysql/en/optional/marc21_relatorterms.yml b/installer/data/mysql/en/optional/marc21_relatorterms.yml
index a5e5c111fa..1f741d139e 100644
--- a/installer/data/mysql/en/optional/marc21_relatorterms.yml
+++ b/installer/data/mysql/en/optional/marc21_relatorterms.yml
@@ -1190,6 +1190,14 @@ tables:
           authorised_value: "wde"
           lib: "Wood engraver"
 
+        - category: "RELTERMS"
+          authorised_value: "wfs"
+          lib: "Writer of film story"
+
+        - category: "RELTERMS"
+          authorised_value: "wft"
+          lib: "Writer of intertitles"
+
         - category: "RELTERMS"
           authorised_value: "win"
           lib: "Writer of introduction"
@@ -1205,3 +1213,7 @@ tables:
         - category: "RELTERMS"
           authorised_value: "wst"
           lib: "Writer of supplementary textual content"
+
+        - category: "RELTERMS"
+          authorised_value: "wts"
+          lib: "Writer of television story"
\ No newline at end of file