diff --git a/src/main/resources/fess_label_ru.properties b/src/main/resources/fess_label_ru.properties
index a56f0a3db..a61d9b75a 100644
--- a/src/main/resources/fess_label_ru.properties
+++ b/src/main/resources/fess_label_ru.properties
@@ -255,6 +255,7 @@ labels.facet_filetype_qt=QuickTime Video
 labels.facet_filetype_m4v=M4V Video
 labels.facet_filetype_ogg=OGG Audio
 labels.facet_filetype_wav=WAV Audio
+labels.facet_filetype_webp=WebP Audio
 labels.facet_filetype_aif=AIF Audio
 labels.facet_filetype_mid=MIDI Audio
 labels.facet_filetype_mpga=MPGA Audio