diff --git a/install.js b/install.js
index e5a15e53e..be5a3d427 100644
--- a/install.js
+++ b/install.js
@@ -81,6 +81,7 @@ async.series([
                 if (error) {
                     throw new Error('Python is required to build libgit2');
                 }
+                callback();
             });
         });