diff --git a/builder/docker/builder.go b/builder/docker/builder.go
index 470fa0f6e..bbd92af1b 100644
--- a/builder/docker/builder.go
+++ b/builder/docker/builder.go
@@ -77,7 +77,7 @@ func (b *Builder) Run(ctx context.Context, ui packer.Ui, hook packer.Hook) (pack
 
 	// Setup the state bag and initial state for the steps
 	state := new(multistep.BasicStateBag)
-	state.Put("config", b.config)
+	state.Put("config", &b.config)
 	state.Put("hook", hook)
 	state.Put("ui", ui)