diff --git a/Python.gitignore b/Python.gitignore
index 762cc89f..ba44af1c 100644
--- a/Python.gitignore
+++ b/Python.gitignore
@@ -133,3 +133,6 @@ dmypy.json
 
 # pytype static type analyzer
 .pytype/
+
+# Cython debug symbols
+cython_debug/