diff --git a/WeirdFrontiers/sheet.json b/WeirdFrontiers/sheet.json
index aa0ec61722..326a108dbb 100644
--- a/WeirdFrontiers/sheet.json
+++ b/WeirdFrontiers/sheet.json
@@ -5,6 +5,6 @@
 	"roll20userid": "3805415",
 	"patreon":"",
 	"tipeee":"",
-	"preview": "WeirdFrontiersPreview.jpg",
+	"preview": "WeirdFrontiersPreview.png",
 	"instructions": "none"
-}
\ No newline at end of file
+}