diff --git a/conf/vars.xml b/conf/vars.xml
index 0fbcda17b8..139ec5324d 100644
--- a/conf/vars.xml
+++ b/conf/vars.xml
@@ -35,6 +35,8 @@
        speex@32000h@20i - Speex 32kHz using 20ms ptime.
        G7221@16000h     - G722.1 16kHz (aka Siren 7)
        G7221@32000h     - G722.1C 32kHz (aka Siren 14)
+       CELT@32000h      - CELT 32kHz, only 10ms supported
+       CELT@48000h      - CELT 48kHz, only 10ms supported
        GSM@40i          - GSM 8kHz using 40ms ptime. (GSM is done in multiples of 20, Default is 20ms)
        G722             - G722 16kHz using default 20ms ptime. (multiples of 10)
        PCMU             - G711 8kHz ulaw using default 20ms ptime. (multiples of 10)