1 files changed, 1 insertions, 1 deletions
diff --git a/Parser/asdl.py b/Parser/asdl.py
index 7f50948..e3e6c34 100644
--- a/Parser/asdl.py
+++ b/Parser/asdl.py
@@ -204,7 +204,7 @@ def check(mod):
 
 def parse(filename):
     """Parse ASDL from the given file and return a Module node describing it."""
-    with open(filename) as f:
+    with open(filename, encoding="utf-8") as f:
         parser = ASDLParser()
         return parser.parse(f.read())