diff --git a/src/calibre/gui2/dialogs/match_books.py b/src/calibre/gui2/dialogs/match_books.py
index 6c4ff84aff..62eee7502e 100644
--- a/src/calibre/gui2/dialogs/match_books.py
+++ b/src/calibre/gui2/dialogs/match_books.py
@@ -84,7 +84,7 @@ class MatchBooks(QDialog, Ui_MatchBooks):
         self.books_table.setHorizontalHeaderItem(0, t)
         t = QTableWidgetItem(_('Authors'))
         self.books_table.setHorizontalHeaderItem(1, t)
-        t = QTableWidgetItem(_('Series'))
+        t = QTableWidgetItem(ngettext("Series", 'Series', 1))
         self.books_table.setHorizontalHeaderItem(2, t)
         self.books_table_header_height = self.books_table.height()
         self.books_table.cellDoubleClicked.connect(self.book_doubleclicked)
diff --git a/src/calibre/gui2/dialogs/quickview.py b/src/calibre/gui2/dialogs/quickview.py
index ff5b8d4ebe..5e1cd78d58 100644
--- a/src/calibre/gui2/dialogs/quickview.py
+++ b/src/calibre/gui2/dialogs/quickview.py
@@ -96,7 +96,7 @@ class Quickview(QDialog, Ui_Quickview):
         self.books_table.setHorizontalHeaderItem(self.title_column, t)
         t = QTableWidgetItem(_('Authors'))
         self.books_table.setHorizontalHeaderItem(self.author_column, t)
-        t = QTableWidgetItem(_('Series'))
+        t = QTableWidgetItem(ngettext("Series", 'Series', 1))
         self.books_table.setHorizontalHeaderItem(self.series_column, t)
         self.books_table_header_height = self.books_table.height()
         self.books_table.cellDoubleClicked.connect(self.book_doubleclicked)