1 files changed, 1 insertions, 1 deletions
diff --git a/src/cli/runtime/PersistentHashtableMap.cs b/src/cli/runtime/PersistentHashtableMap.cs
index 520bb05a..0cf2206d 100644
--- a/src/cli/runtime/PersistentHashtableMap.cs
+++ b/src/cli/runtime/PersistentHashtableMap.cs
@@ -195,7 +195,7 @@ class Seq : ISeq{
             return new Seq(buckets,b,e.rest());
         for(b = b+1;b<buckets.length();b++)
             {
-            ISequential a = (ISequential) buckets.get(b);
+            IPersistentCollection a = (IPersistentCollection) buckets.get(b);
             if(a != null && a.seq() != null)
                 return new Seq(buckets,b,a.seq());
             }