diff --git a/system/config/media.yaml b/system/config/media.yaml
index a2e82d86b..88b8047eb 100644
--- a/system/config/media.yaml
+++ b/system/config/media.yaml
@@ -30,7 +30,7 @@ gif:
 
 svg:
   type: vector
-  thumb: media/thumb-gif.png
+  thumb: media/thumb.png
   mime: image/svg+xml
 
 mp4:
@@ -53,6 +53,14 @@ flv:
   type: video
   thumb: media/thumb-flv.png
   mime: video/x-flv
+webm:
+  type: video
+  thumb: media/thumb.png
+  mime: video/webm
+ogv:
+  type: video
+  thumb: media/thumb-ogg.png
+  mime: video/ogg
 
 mp3:
   type: audio