diff --git a/django/conf/locale/pl/formats.py b/django/conf/locale/pl/formats.py
index a4a2961185..4520f7ce4e 100644
--- a/django/conf/locale/pl/formats.py
+++ b/django/conf/locale/pl/formats.py
@@ -28,5 +28,5 @@ DATETIME_INPUT_FORMATS = (
     '%Y-%m-%d',             # '2006-10-25'
 )
 DECIMAL_SEPARATOR = ','
-THOUSAND_SEPARATOR = '.'
-NUMBER_GROUPING = 3
\ No newline at end of file
+THOUSAND_SEPARATOR = ' '
+NUMBER_GROUPING = 3