diff --git a/src/watchdog/observers/winapi.py b/src/watchdog/observers/winapi.py
index eb5f37299..a828f8a5a 100644
--- a/src/watchdog/observers/winapi.py
+++ b/src/watchdog/observers/winapi.py
@@ -63,7 +63,7 @@
 
 FILE_FLAG_BACKUP_SEMANTICS = 0x02000000
 FILE_FLAG_OVERLAPPED = 0x40000000
-FILE_LIST_DIRECTORY = 0x01
+FILE_LIST_DIRECTORY = 1
 FILE_SHARE_READ = 0x01
 FILE_SHARE_WRITE = 0x02
 FILE_SHARE_DELETE = 0x04