diff --git a/resources/languages/resources_cs.properties b/resources/languages/resources_cs.properties
index 5c87e98b4..ad98ef1aa 100644
--- a/resources/languages/resources_cs.properties
+++ b/resources/languages/resources_cs.properties
@@ -970,6 +970,9 @@ impl.media.configform.VIDEO=&Kamera:
 
 impl.neomedia.configform.AUDIO=Audio
 impl.neomedia.configform.VIDEO=Video
+
+impl.neomedia.configform.H264.preferredKeyFrameRequester.rtcp=RTP
+
 # The callrecordingconfig plugin was never really committed into trunk and its
 # ConfigurationForm was actually put in the neomedia bundle.
 plugin.callrecordingconfig.CALL_RECORDING_CONFIG=Záznam hovoru