diff --git a/index.js b/index.js
index 92f3779..cc7b4b9 100644
--- a/index.js
+++ b/index.js
@@ -49,7 +49,7 @@ async function run() {
 
     var content = comment && comment.body || '';
 
-      const url = `${giteaBaseURL}/api/v1/repos/${repoOwner}/${repoName}/pulls/${prNumber}/diff`;
+      const url = `${githubBaseURL}/api/v1/repos/${repoOwner}/${repoName}/pulls/${prNumber}/diff`;
       console.log(`diff url: ${url}`);
       var response = await axios.get(url, {
           headers: {