diff --git a/weed/util/compression.go b/weed/util/compression.go
index 5ba8c4930..8699a8117 100644
--- a/weed/util/compression.go
+++ b/weed/util/compression.go
@@ -147,7 +147,7 @@ func IsZstdContent(data []byte) bool {
 		if strings.HasSuffix(mtype, "script") {
 			return true, true
 		}
-		if strings.HasSuffix(mtype, "vnd.rar) {
+		if strings.HasSuffix(mtype, "vnd.rar") {
 			return false, true
 		}
 	}