diff --git a/examples/movies/main.go b/examples/movies/main.go
index 2707767..cb0377c 100644
--- a/examples/movies/main.go
+++ b/examples/movies/main.go
@@ -29,6 +29,9 @@ var (
 	BlockBusters = &gql.Schema{
 		Query:    Query,
 		Mutation: nil,
+		AdditionalTypes: []gql.Type{
+			FooInput,
+		},
 	}
 
 	FooInput = &gql.InputObject{
@@ -50,11 +53,11 @@ var (
 				Description: "",
 				Resolver: func(ctx gql.Context) (interface{}, error) {
 					return []Movie{
-						Movie{
+						{
 							ID:    "22424234",
 							Title: "Interstellar",
 						},
-						Movie{
+						{
 							ID:    "34363453",
 							Title: "Titanic",
 						},
diff --git a/pkg/language/ast/typesystem.go b/pkg/language/ast/typesystem.go
index 979b976..85c9b71 100644
--- a/pkg/language/ast/typesystem.go
+++ b/pkg/language/ast/typesystem.go
@@ -263,7 +263,14 @@ func (d *InputObjectDefinition) String() string {
 	for _, dir := range d.Directives {
 		out += dir.String() + " "
 	}
-	out += "{\n}\n"
+	out += "{\n"
+	for i, f := range d.Fields {
+		if i != 0 {
+			out += "\n"
+		}
+		out += "\t" + f.String()
+	}
+	out += "\n}\n"
 	return out
 }