diff --git a/XmlSchemaClassGenerator/NamespaceProvider.cs b/XmlSchemaClassGenerator/NamespaceProvider.cs
index 4ae504a9..092fd859 100644
--- a/XmlSchemaClassGenerator/NamespaceProvider.cs
+++ b/XmlSchemaClassGenerator/NamespaceProvider.cs
@@ -170,7 +170,7 @@ public string FindNamespace(NamespaceKey key, string defaultNamespace = null)
             }
 
             string ns;
-            if (TryGenerateNamespace(key, out ns))
+            if (TryGetValue(key, out ns))
                 return ns;
 
             return defaultNamespace;