diff --git a/.mailmap b/.mailmap
index 66f61c34ddb..17c44ef97b1 100644
--- a/.mailmap
+++ b/.mailmap
@@ -54,3 +54,4 @@ Tomek Trzeciak             <tomasz.trzeciak@metoffice.gov.uk>
 Tomek Trzeciak             <tomasz.trzeciak@metoffice.gov.uk>   TomekTrzeciak       <tomasz.trzeciak@metoffice.gov.uk>
 github-actions[bot]        <github-actions@noreply.github.com>                      <41898282+github-actions[bot]@users.noreply.github.com> 
 github-actions[bot]        <github-actions@noreply.github.com>  GitHub Action
+Diquan Jabbour             <165976689+Diquan-BOM@users.noreply.github.com>
diff --git a/CONTRIBUTING.md b/CONTRIBUTING.md
index a1bf42e6215..75d6bbb86c9 100644
--- a/CONTRIBUTING.md
+++ b/CONTRIBUTING.md
@@ -93,6 +93,7 @@ requests_).
  - (Andrew Huang)
  - Cheng Da
  - Mark Dawson
+ - Diquan Jabbour
 <!-- end-shortlog -->
 
 (All contributors are identifiable with email addresses in the git version
diff --git a/cylc/flow/xtrigger_mgr.py b/cylc/flow/xtrigger_mgr.py
index 243ea1cb20f..f6595b400a3 100644
--- a/cylc/flow/xtrigger_mgr.py
+++ b/cylc/flow/xtrigger_mgr.py
@@ -60,7 +60,7 @@ class TemplateVariables(Enum):
        [scheduling]
            initial cycle point = now
            [[xtriggers]]
-               my_xtrigger = my_xtrigger_fcn('%(workflow)', '%(point)')
+               my_xtrigger = my_xtrigger_fcn('%(workflow)s', '%(point)s')
 
     For an explanation of the substitution syntax, see
     `String Formatting Operations in the Python documentation