diff --git a/lib/chamber/namespace_set.rb b/lib/chamber/namespace_set.rb
index <HASH>..<HASH> 100644
--- a/lib/chamber/namespace_set.rb
+++ b/lib/chamber/namespace_set.rb
@@ -102,7 +102,7 @@ class   NamespaceSet
   # Returns a Boolean
   #
   def eql?(other)
-    other.is_a?(        Chamber::NamespaceSet)  &&
+    other.is_a?(        NamespaceSet)  &&
     self.namespaces  == other.namespaces
   end
We don't need the additional 'Chamber' namespace