diff --git a/makefile.shade b/makefile.shade
index 84d80d6a6a..ee37a90fde 100644
--- a/makefile.shade
+++ b/makefile.shade
@@ -894,9 +894,12 @@ functions
 
         static IList<IGrouping<int, string>> GetBuildGraph()
         {
-            var repositoryLookup = GetRepositoriesToBuild()
-                    .Select(RepoInfoFactory.Create)
-                    .ToList();
+            var repositoryLookup = new List<RepositoryInfo>();
+
+            Parallel.ForEach(GetRepositoriesToBuild(), repo =>
+                {
+                    repositoryLookup.Add(RepoInfoFactory.Create(repo));
+                });
 
             foreach (var info in repositoryLookup)
             {