diff --git a/dsmrreader/formats/nl/formats.py b/dsmrreader/formats/nl/formats.py
index b30e9b995..e54c010e0 100644
--- a/dsmrreader/formats/nl/formats.py
+++ b/dsmrreader/formats/nl/formats.py
@@ -14,8 +14,8 @@
 
 DSMR_EXPORT_DATETIME_FORMAT = 'c'
 DSMR_EXPORT_DATE_FORMAT = 'd-m-Y'
-DSMR_STATISTICS_DATETIME_FORMAT = 'l j F Y \o\m G:i'
+DSMR_STATISTICS_DATETIME_FORMAT = 'l j F Y \\o\\m G:i'
 
-DSMR_VERBOSE_DATETIME_FORMAT = 'd F Y \o\m H:i:s'
+DSMR_VERBOSE_DATETIME_FORMAT = 'd F Y \\o\\m H:i:s'
 
 DJANGO_DATE_FORMAT = 'd-m-Y'