diff --git a/app/src/main/res/values-cs/strings.xml b/app/src/main/res/values-cs/strings.xml
index 892ee2c44..022dfe5c4 100644
--- a/app/src/main/res/values-cs/strings.xml
+++ b/app/src/main/res/values-cs/strings.xml
@@ -693,4 +693,5 @@
     <string name="any">Jakýkoliv</string>
     <string name="chapters_all">Všechny</string>
     <string name="ask_every_time">Vždy se zeptat</string>
+    <string name="sfw">SFW</string>
 </resources>
\ No newline at end of file