diff --git a/apps/i2psnark/mime.properties b/apps/i2psnark/mime.properties
index 9ae49725ac..a0228a465d 100644
--- a/apps/i2psnark/mime.properties
+++ b/apps/i2psnark/mime.properties
@@ -30,6 +30,7 @@ odt	= application/vnd.oasis.opendocument.text
 ogm	= video/ogg
 ogv	= video/ogg
 oga	= audio/ogg
+opus	= audio/ogg
 otc	= application/vnd.oasis.opendocument.chart-template
 otf	= application/vnd.oasis.opendocument.formula-template
 otg	= application/vnd.oasis.opendocument.graphics-template