diff --git a/l10n/ru.js b/l10n/ru.js
index 7bbbb3e..cff9a5c 100644
--- a/l10n/ru.js
+++ b/l10n/ru.js
@@ -19,6 +19,7 @@ OC.L10N.register(
     "Epub" : "Epub",
     "PDF" : "PDF",
     "CBR/CBZ" : "CBR/CBZ",
+    " " : " ",
     "endobj" : "endobj",
     "startxref" : "startxref",
     "%PDF-" : "%PDF-"
diff --git a/l10n/ru.json b/l10n/ru.json
index b94a900..27430dc 100644
--- a/l10n/ru.json
+++ b/l10n/ru.json
@@ -17,6 +17,7 @@
     "Epub" : "Epub",
     "PDF" : "PDF",
     "CBR/CBZ" : "CBR/CBZ",
+    " " : " ",
     "endobj" : "endobj",
     "startxref" : "startxref",
     "%PDF-" : "%PDF-"