diff --git a/lib/github.js b/lib/github.js
index 9fcfacb..3492a56 100644
--- a/lib/github.js
+++ b/lib/github.js
@@ -44,10 +44,15 @@ const splittedURL = fullURL => {
   // ...and then remove it from the parts
   pathParts.splice(0, 2)
 
-  return {
-    main,
-    ref: pathParts.length >= 2 ? pathParts[1] : ''
+  // Assign Git reference
+  let ref = pathParts.length >= 2 ? pathParts[1] : ''
+
+  // Shorten SHA for commits
+  if (pathParts[0] && pathParts[0] === 'commit') {
+    ref = ref.substring(0, 7)
   }
+
+  return {main, ref}
 }
 
 export const gitPathParts = main => {