diff --git a/portal.go b/portal.go
index 8f22ab79..dfb41e2c 100644
--- a/portal.go
+++ b/portal.go
@@ -3504,7 +3504,7 @@ func (portal *Portal) convertMediaMessage(intent *appservice.IntentAPI, source *
 	// Sticker events require the URL field to be present https://spec.matrix.org/v1.9/client-server-api/#events-16
 	// This seems to affect only clients based on the Rust SDK on encrypted channels (like Element X)
 	if typeName == "sticker" && converted.Content.File != nil {
-		converted.Content.URL = converted.Content.File.URL
+		converted.Extra["url"] = ""
 	}
 
 	return converted