diff --git a/l10n/cs.js b/l10n/cs.js
index 070c049..907d7d1 100644
--- a/l10n/cs.js
+++ b/l10n/cs.js
@@ -2,6 +2,9 @@ OC.L10N.register(
     "ocsms",
     {
     "Phone Sync" : "Synchronizace s telefonem",
+    "utf-8" : "utf-8",
+    "big" : "velké",
+    "font" : "písmo",
     "An app to sync SMS with your cloud" : "Aplikace pro synchronizaci SMS s vaším cloudem",
     "No contact found." : "Nebyl nalezen žádný kontakt.",
     "Settings" : "Nastavení",
diff --git a/l10n/cs.json b/l10n/cs.json
index e7de489..0b524fc 100644
--- a/l10n/cs.json
+++ b/l10n/cs.json
@@ -1,5 +1,8 @@
 { "translations": {
     "Phone Sync" : "Synchronizace s telefonem",
+    "utf-8" : "utf-8",
+    "big" : "velké",
+    "font" : "písmo",
     "An app to sync SMS with your cloud" : "Aplikace pro synchronizaci SMS s vaším cloudem",
     "No contact found." : "Nebyl nalezen žádný kontakt.",
     "Settings" : "Nastavení",