diff --git a/lib/homesick.rb b/lib/homesick.rb
index 275f742..796da09 100644
--- a/lib/homesick.rb
+++ b/lib/homesick.rb
@@ -9,7 +9,7 @@ class Homesick < Thor
 
   add_runtime_options!
 
-  GITHUB_NAME_REPO_PATTERN = /\A([A-Za-z_-]+\/[A-Za-z_-]+)\Z/
+  GITHUB_NAME_REPO_PATTERN = /\A([A-Za-z0-9_-]+\/[A-Za-z0-9_-]+)\Z/
   SUBDIR_FILENAME = '.homesick_subdir'
 
   DEFAULT_CASTLE_NAME = 'dotfiles'