diff --git a/CHANGELOG.md b/CHANGELOG.md
index 1d1546a..c40096c 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -5,6 +5,12 @@ All notable changes to this project will be documented in this file.
 The format is based on [Keep a Changelog](http://keepachangelog.com/)
 and this project adheres to [Semantic Versioning](http://semver.org/).
 
+## [UNRELEASED]
+
+### Fixed
+
+- Fix error message "Unknown '_sx' function"
+
 ## [1.20.0] - 2025-09-16
 
 ### Added
@@ -43,4 +49,3 @@ and this project adheres to [Semantic Versioning](http://semver.org/).
 
 ### Added
 - GLPI 9.5 compatibility
-
diff --git a/templates/config.html.twig b/templates/config.html.twig
index 048c496..fa1f854 100644
--- a/templates/config.html.twig
+++ b/templates/config.html.twig
@@ -107,7 +107,7 @@
         <div class="pe-5 ms-auto">
             <button class="btn btn-primary" type="submit" name="update" value="1">
                 <i class="ti ti-device-floppy"></i>
-                <span>{{ _sx('button', 'Save') }}</span>
+                <span>{{ _x('button', 'Save') }}</span>
             </button>
         </div>
     </div>
diff --git a/templates/preference.html.twig b/templates/preference.html.twig
index b12142a..ad05d74 100644
--- a/templates/preference.html.twig
+++ b/templates/preference.html.twig
@@ -49,7 +49,7 @@
         <div class="pe-5 ms-auto">
             <button class="btn btn-primary" type="submit" name="plugin_treeview_user_preferences_save" value="1">
                 <i class="ti ti-device-floppy"></i>
-                <span>{{ _sx('button', 'Save') }}</span>
+                <span>{{ _x('button', 'Save') }}</span>
             </button>
         </div>
     </div>
diff --git a/templates/profile.html.twig b/templates/profile.html.twig
index 71084e1..7bae5fc 100644
--- a/templates/profile.html.twig
+++ b/templates/profile.html.twig
@@ -49,7 +49,7 @@
         <div class="pe-5 ms-auto">
             <button class="btn btn-primary" type="submit" name="update_user_profile" value="1">
                 <i class="ti ti-device-floppy"></i>
-                <span>{{ _sx('button', 'Update') }}</span>
+                <span>{{ _x('button', 'Update') }}</span>
             </button>
         </div>
     </div>