diff --git a/anki/importing/csvfile.py b/anki/importing/csvfile.py
index 423f4c2c1..99ced1027 100644
--- a/anki/importing/csvfile.py
+++ b/anki/importing/csvfile.py
@@ -57,6 +57,7 @@ class TextImporter(Importer):
             cards.append(card)
         self.log = log
         self.ignored = ignored
+        self.fileobj.close()
         return cards
 
     def sniff(self):