diff --git a/Lib/sqlite3/test/hooks.py b/Lib/sqlite3/test/hooks.py
index a6161fa..a92e838 100644
--- a/Lib/sqlite3/test/hooks.py
+++ b/Lib/sqlite3/test/hooks.py
@@ -168,6 +168,7 @@
         con = sqlite.connect(":memory:")
         action = 0
         def progress():
+            nonlocal action
             action = 1
             return 0
         con.set_progress_handler(progress, 1)