diff --git a/activesupport/lib/active_support/cache/file_store.rb b/activesupport/lib/active_support/cache/file_store.rb
index 58b7b53016..2d5249a699 100644
--- a/activesupport/lib/active_support/cache/file_store.rb
+++ b/activesupport/lib/active_support/cache/file_store.rb
@@ -36,7 +36,7 @@ module ActiveSupport
       def clear(options = nil)
         root_dirs = (Dir.children(cache_path) - GITKEEP_FILES)
         FileUtils.rm_r(root_dirs.collect { |f| File.join(cache_path, f) })
-      rescue Errno::ENOENT
+      rescue Errno::ENOENT, Errno::ENOTEMPTY
       end
 
       # Preemptively iterates through all stored keys and removes the ones which have expired.