diff --git a/src/org/jruby/runtime/ObjectSpace.java b/src/org/jruby/runtime/ObjectSpace.java
index 07c2e57991a..79030fc43fa 100644
--- a/src/org/jruby/runtime/ObjectSpace.java
+++ b/src/org/jruby/runtime/ObjectSpace.java
@@ -92,7 +92,7 @@ public IRubyObject id2ref(long id) {
     private void cleanIdentities() {
         IdReference ref;
         while ((ref = (IdReference) deadIdentityReferences.poll()) != null)
-            identities.remove(long Long(ref.id()));
+            identities.remove(new Long(ref.id()));
     }
 
     public synchronized void add(IRubyObject object) {