diff --git a/cmd/bzzup/main.go b/cmd/bzzup/main.go
index 7d251aadb0..329f860c78 100644
--- a/cmd/bzzup/main.go
+++ b/cmd/bzzup/main.go
@@ -47,7 +47,7 @@ func main() {
 
 	var (
 		file   = flag.Arg(0)
-		client = &client{api: *bzzapiFlag}
+		client = &client{api: strings.TrimSuffix(*bzzapiFlag, "/")}
 		mroot  manifest
 	)
 	fi, err := os.Stat(file)