diff --git a/gramps/gen/datehandler/_date_nb.py b/gramps/gen/datehandler/_date_nb.py
index 818883a88..333308a69 100644
--- a/gramps/gen/datehandler/_date_nb.py
+++ b/gramps/gen/datehandler/_date_nb.py
@@ -60,8 +60,8 @@ class DateParserNb(DateParser):
         "omkring": Date.MOD_ABOUT,
         "omtrent": Date.MOD_ABOUT,
         "ca": Date.MOD_ABOUT,
-        "from": Date.MOD_FROM,
-        "to": Date.MOD_TO,
+        "fra": Date.MOD_FROM,
+        "til": Date.MOD_TO,
     }
 
     bce = ["f Kr"]