diff --git a/gramps/gen/utils/docgen/csvtab.py b/gramps/gen/utils/docgen/csvtab.py
index a9d6bfe51..01822ebf4 100644
--- a/gramps/gen/utils/docgen/csvtab.py
+++ b/gramps/gen/utils/docgen/csvtab.py
@@ -31,6 +31,7 @@ import csv
 #
 #-------------------------------------------------------------------------
 from .tabbeddoc import *
+from ...constfunc import win
 
 class CSVTab(TabbedDoc):
 
@@ -48,7 +49,8 @@ class CSVTab(TabbedDoc):
         else:
             self.filename = filename
 
-        self.f = open(self.filename, "w")
+        self.f = open(self.filename, "w",
+                      encoding='utf_8_sig' if win() else 'utf_8')
         self.writer = csv.writer(self.f)
 
     def close(self):