diff --git a/toolkit/locales/en-US/toolkit/about/aboutAddons.ftl b/toolkit/locales/en-US/toolkit/about/aboutAddons.ftl
index 01a5dcfb8e3c..5ea6a99d813d 100644
--- a/toolkit/locales/en-US/toolkit/about/aboutAddons.ftl
+++ b/toolkit/locales/en-US/toolkit/about/aboutAddons.ftl
@@ -140,7 +140,7 @@ detail-repository-value =
 
 detail-check-for-updates =
     .label = Check for Updates
-    .accesskey = F
+    .accesskey = U
     .tooltiptext = Check for updates for this add-on
 
 detail-show-preferences =