diff --git a/lib/swag_dev/project/tools/yardoc/file.rb b/lib/swag_dev/project/tools/yardoc/file.rb
index <HASH>..<HASH> 100644
--- a/lib/swag_dev/project/tools/yardoc/file.rb
+++ b/lib/swag_dev/project/tools/yardoc/file.rb
@@ -37,7 +37,7 @@ class SwagDev::Project::Tools::Yardoc::File
     @glob
   end
 
-  def to_s_
+  def to_s
     filepath
   end
yardoc/file (tools) typo