diff --git a/event/beeper.go b/event/beeper.go
index 2c7d9bf2..6de41df6 100644
--- a/event/beeper.go
+++ b/event/beeper.go
@@ -146,7 +146,7 @@ type BeeperLinkPreview struct {
 
 	MatchedURL      string             `json:"matched_url,omitempty"`
 	ImageEncryption *EncryptedFileInfo `json:"beeper:image:encryption,omitempty"`
-	ImageBlurhash   string             `json:"beeper:image:blurhash,omitempty"`
+	ImageBlurhash   string             `json:"matrix:image:blurhash,omitempty"`
 }
 
 type BeeperProfileExtra struct {