diff --git a/omniorb-ssl-py39.rb b/omniorb-ssl-py39.rb
index 86b9fe0..33a38a0 100644
--- a/omniorb-ssl-py39.rb
+++ b/omniorb-ssl-py39.rb
@@ -23,7 +23,7 @@ class OmniorbSslPy39 < Formula
   end
 
   bottle do
-    root_url "https://github.com/OpenRTM/homebrew-omniorb/releases/download/4.3.2/"
+    root_url "https://github.com/OpenRTM/homebrew-omniorb/releases/download/v4.3.2"
     rebuild 1
     sha256 cellar: :any, ventura: "32f63951460bcffa7cefa297bc9522ec9b39fc1c7419e3ad58c8bff831b8132e"
     rebuild 1