diff --git a/Library/Homebrew/dev-cmd/generate-cask-api.rb b/Library/Homebrew/dev-cmd/generate-cask-api.rb
index 9985ac727b..864e7e6bff 100644
--- a/Library/Homebrew/dev-cmd/generate-cask-api.rb
+++ b/Library/Homebrew/dev-cmd/generate-cask-api.rb
@@ -72,7 +72,7 @@ module Homebrew
       def html_template(title)
         <<~EOS
           ---
-          title: #{title}
+          title: '#{title}'
           layout: cask
           ---
           {{ content }}
diff --git a/Library/Homebrew/dev-cmd/generate-formula-api.rb b/Library/Homebrew/dev-cmd/generate-formula-api.rb
index 5a06a0e0ed..563fceb2b6 100644
--- a/Library/Homebrew/dev-cmd/generate-formula-api.rb
+++ b/Library/Homebrew/dev-cmd/generate-formula-api.rb
@@ -72,7 +72,7 @@ module Homebrew
       def html_template(title)
         <<~EOS
           ---
-          title: #{title}
+          title: '#{title}'
           layout: formula
           redirect_from: /formula-linux/#{title}
           ---