diff --git a/src/main/java/graphql/execution/TypeInfo.java b/src/main/java/graphql/execution/TypeInfo.java
index <HASH>..<HASH> 100644
--- a/src/main/java/graphql/execution/TypeInfo.java
+++ b/src/main/java/graphql/execution/TypeInfo.java
@@ -74,7 +74,7 @@ public class TypeInfo {
                 typeIsNonNull, type, parentType);
     }
 
-    static class Builder {
+    public static class Builder {
         GraphQLType type;
         TypeInfo parentType;
#<I> type info build is public