diff --git a/code/go/0chain.net/blobber/main.go b/code/go/0chain.net/blobber/main.go
index c3a6163f2..d01de9268 100644
--- a/code/go/0chain.net/blobber/main.go
+++ b/code/go/0chain.net/blobber/main.go
@@ -334,6 +334,7 @@ func main() {
 	headersOk := handlers.AllowedHeaders([]string{
 		"X-Requested-With", "X-App-Client-ID",
 		"X-App-Client-Key", "Content-Type",
+		"X-App-Client-Signature",
 	})
 
 	// Allow anybody to access API.