diff --git a/lib/dugway/theme.rb b/lib/dugway/theme.rb
index <HASH>..<HASH> 100644
--- a/lib/dugway/theme.rb
+++ b/lib/dugway/theme.rb
@@ -114,7 +114,7 @@ module Dugway
       file_path = File.join(source_dir, file_name)
 
       if File.exist?(file_path)
-        File.read(file_path)
+        File.read(file_path).encode('utf-8')
       else
         nil
       end
Ensure all source files are UTF-8