diff --git a/res/values/strings.xml b/res/values/strings.xml
index 01f1f9019..90317fdf7 100644
--- a/res/values/strings.xml
+++ b/res/values/strings.xml
@@ -549,7 +549,7 @@ as <xliff:g id="filename">%s</xliff:g>.</string>
     <!-- On "Set up email" screen, checkbox label for making the new account the default account -->
     <string name="account_setup_basics_default_label">
         Send email from this account by default</string>
-    <!-- Button name on "Set up email" screen -->
+    <!-- Button name on "Set up email" screen [CHAR LIMIT=20] -->
     <string name="account_setup_basics_manual_setup_action">Manual setup</string>
     <!-- Toast when we can't build a URI from the given email & password -->
     <!-- Note, the error message in the toast is purposefully vague, because I *don't* know