diff --git a/CHANGELOG.md b/CHANGELOG.md
index fbc3b61..ad2a490 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,5 +1,11 @@
 # Changelog
 
+## 0.4.5 - 2026-03-27
+
+### Fixed
+
+- Fix selector for admonition title in togglebutton.js.
+
 ## 0.4.4 - 2026-01-14
 
 ### Fixed
diff --git a/sphinx_togglebutton/_static/togglebutton.js b/sphinx_togglebutton/_static/togglebutton.js
index e88c0e3..4b822bb 100644
--- a/sphinx_togglebutton/_static/togglebutton.js
+++ b/sphinx_togglebutton/_static/togglebutton.js
@@ -50,7 +50,7 @@ var initToggleItems = () => {
 
       // Add click handlers for the button + admonition title (if admonition)
       admonitionTitle = document.querySelector(
-        `#${toggleID} > .admonition-title`
+        `#` + CSS.escape(toggleID) + ` > .admonition-title`
       );
       if (admonitionTitle) {
         // If an admonition, then make the whole title block clickable