[bugfix] Fix typo in a131de634c

Bug: T245318
Change-Id: Iae08296fdd7913006f5b93bb352e0550ffd15204
---
M pywikibot/data/api.py
1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/pywikibot/data/api.py b/pywikibot/data/api.py
index a75b09e..b22b560 100644
--- a/pywikibot/data/api.py
+++ b/pywikibot/data/api.py
@@ -1514,7 +1514,7 @@
             self._params['wrap'] = ['']
 
         if config.maxlag:
-            self._params.setdefault('maxlag', str(config.maxlag))
+            self._params.setdefault('maxlag', [str(config.maxlag)])
         self._params.setdefault('format', ['json'])
         if self._params['format'] != ['json']:
             raise TypeError("Query format '%s' cannot be parsed."

