diff --git a/src/ForwardDiff.jl b/src/ForwardDiff.jl
index b16b986b..697efe07 100644
--- a/src/ForwardDiff.jl
+++ b/src/ForwardDiff.jl
@@ -1,5 +1,7 @@
 module ForwardDiff
 
+# Hello world
+
 using DiffRules, DiffResults
 using DiffResults: DiffResult, MutableDiffResult
 using Preferences