diff --git a/README.md b/README.md
index c091ba21..4aecd47c 100644
--- a/README.md
+++ b/README.md
@@ -82,6 +82,8 @@ To run the tests:
 
 *Since this code is specific to GitHub, is not published as a official rubygem.*
 
+If you are seeing errors like `StandardError: could not find any magic files!`, it means the CharlockHolmes gem didn’t install correctly. See the [installing section](https://github.com/brianmario/charlock_holmes/blob/master/README.md) of the CharlockHolmes README for more information.
+
 ## Contributing
 
 1. Fork it.
diff --git a/lib/linguist/languages.yml b/lib/linguist/languages.yml
index 2430d9a2..a7de46f3 100644
--- a/lib/linguist/languages.yml
+++ b/lib/linguist/languages.yml
@@ -817,6 +817,7 @@ Ruby:
   - .gemspec
   - .god
   - .irbrc
+  - .podspec
   - .rake
   - .rb
   - .rbuild
@@ -827,10 +828,11 @@ Ruby:
   - .watchr
   filenames:
   - Capfile
-  - Rakefile
-  - Thorfile
   - Gemfile
   - Guardfile
+  - Podfile
+  - Rakefile
+  - Thorfile
   - Vagrantfile
 
 Rust: