diff --git a/config.go b/config.go
index 60059c3..6d9268a 100644
--- a/config.go
+++ b/config.go
@@ -44,7 +44,7 @@ func (t *TemporalConfig) setDefaults() {
 	if t.LogDir == "" {
 		t.LogDir = "/var/log/temporal/"
 	}
-	if len(t.API.Connection.CORS.AllowedOrigin) == 0 {
-		t.API.Connection.CORS.AllowedOrigin = []string{"temporal.cloud", "backup.temporal.cloud"}
+	if len(t.API.Connection.CORS.AllowedOrigins) == 0 {
+		t.API.Connection.CORS.AllowedOrigins = []string{"temporal.cloud", "backup.temporal.cloud"}
 	}
 }