diff --git a/src/content_script/mastodonInject.js b/src/content_script/mastodonInject.js
index 261871b..0d57129 100644
--- a/src/content_script/mastodonInject.js
+++ b/src/content_script/mastodonInject.js
@@ -14,7 +14,7 @@ function onClickFollow(event) {
 }
 
 /**
- * wait for element to appear.
+ * Wait for element to appear.
  * @param {string} selector
  * @param {number} timeoutDuration
  * @see {@link https://github.com/storybookjs/test-runner/blob/6d41927154e8dd1e4c9e7493122e24e2739a7a0f/src/setup-page.ts#L134}