diff --git a/notify/teams.sh b/notify/teams.sh
index f1b11d5ba5..5e8fe6c061 100755
--- a/notify/teams.sh
+++ b/notify/teams.sh
@@ -46,7 +46,7 @@ teams_send() {
             \"contentType\": \"application/vnd.microsoft.card.adaptive\",
             \"contentUrl\": null,
             \"content\": {
-                \"$schema\": \"http://adaptivecards.io/schemas/adaptive-card.json\",
+                \"schema\": \"http://adaptivecards.io/schemas/adaptive-card.json\",
                 \"type\": \"AdaptiveCard\",
                 \"version\": \"1.2\",
                 \"body\": [