diff --git a/src/git-repository-async.js b/src/git-repository-async.js
index d0903acd8..3b33a5003 100644
--- a/src/git-repository-async.js
+++ b/src/git-repository-async.js
@@ -660,11 +660,6 @@ export default class GitRepositoryAsync {
         }
         return this._diffBlobToBuffer(blob, text, options)
       })
-      .catch(e => {
-        // NB: I don't love this, but we're matching the behavior of
-        // `GitRepository` here for API compatibility.
-        return {}
-      })
   }
 
   // Checking Out