diff --git a/src/PersistentOrderedMap.mo b/src/PersistentOrderedMap.mo
index b3e8d434..62f55b7a 100644
--- a/src/PersistentOrderedMap.mo
+++ b/src/PersistentOrderedMap.mo
@@ -608,7 +608,7 @@ module {
   };
 
 
-  module Internal {
+  public module Internal {
 
     public func fromIter<K, V>(i : I.Iter<(K,V)>, compare : (K, K) -> O.Order) : Map<K, V>
     {