diff --git a/lang/Localization_en.json b/lang/Localization_en.json
index 41a234b..74cc986 100644
--- a/lang/Localization_en.json
+++ b/lang/Localization_en.json
@@ -7,6 +7,7 @@
 "title.nextpage":"next page ({0} of {1})",
 "title.lastpage":"next page (last)",
 "title.numberOfPages":"{0} ({1} pages)",
+"pubdate.title":"Publication year"
 "bookword.title":"Books",
 "bookword.none":"No book",
 "bookword.one":"1 book",
diff --git a/lang/Localization_fr.json b/lang/Localization_fr.json
index 10a3633..b6054be 100644
--- a/lang/Localization_fr.json
+++ b/lang/Localization_fr.json
@@ -7,6 +7,7 @@
 "title.nextpage":"page suivante ({0} sur {1})",
 "title.lastpage":"page suivante (dernière)",
 "title.numberOfPages":"{0} ({1} pages)",
+"pubdate.title":"Année de publication"
 "bookword.title":"Livres",
 "bookword.none":"Aucun livre",
 "bookword.one":"1 livre",