diff --git a/sao/CHANGELOG b/sao/CHANGELOG
index 09abd951e7..c2b81bcb81 100644
--- a/sao/CHANGELOG
+++ b/sao/CHANGELOG
@@ -1,3 +1,4 @@
+* Escape completion content with custom format (issue14363)
 
 Version 7.0.39 - 2025-11-02
 ---------------------------
diff --git a/sao/src/common.js b/sao/src/common.js
index ad66ccf082..5182bf2ecf 100644
--- a/sao/src/common.js
+++ b/sao/src/common.js
@@ -3840,9 +3840,13 @@
         },
         _format: function(content) {
             if (this.format) {
-                return this.format(content);
+                content = this.format(content);
+            }
+            if (content instanceof jQuery) {
+                return content;
+            } else {
+                return jQuery('<span/>').text(content);
             }
-            return jQuery('<span/>').text(content);
         },
         _format_action: function(content) {
             if (this.format_action) {