diff --git a/README-extentions.rst b/README-extentions.rst
index 97d78af..9085b57 100644
--- a/README-extentions.rst
+++ b/README-extentions.rst
@@ -208,6 +208,55 @@
   group_errors: True
 
 
+Use references in class names
+-----------------------------
+
+Allows to use references in the class names.
+
+Assuming following setup:
+
+.. code-block:: yaml
+  #/etc/reclass/classes/first.yml
+  parameters:
+    _class:
+      env:
+        override: 'env.dev'
+    lab:
+      name: default
+
+  #/etc/reclass/classes/lab/env/dev.yml
+  parameters:
+    lab:
+      name: dev
+
+  #/etc/reclass/classes/second.yml
+  classes:
+    - first
+    - lab.${_class:env:override}
+
+
+Reclass --nodeinfo then returns:
+
+.. code-block:: yaml
+
+  ...
+  ...
+  applications: []
+  environment: base
+  exports: {}
+  classes:
+  - first
+  - lab.${_class:env:override}
+  - second
+  parameters:
+    _class:
+      env:
+        override: env.dev
+    lab:
+      name: dev
+    ...
+    ...
+
 Inventory Queries
 -----------------
 
diff --git a/reclass/core.py b/reclass/core.py
index 9da0ddb..23851a5 100644
--- a/reclass/core.py
+++ b/reclass/core.py
@@ -19,6 +19,7 @@
 from reclass.output.yaml_outputter import ExplicitDumper
 from reclass.datatypes import Entity, Classes, Parameters, Exports
 from reclass.errors import MappingFormatError, ClassNotFound, InvQueryClassNotFound, InvQueryError, InterpolationError
+from reclass.values.parser import Parser
 
 class Core(object):
 
@@ -89,6 +90,10 @@
         return Entity(self._settings, parameters=p, name='input data')
 
     def _recurse_entity(self, entity, merge_base=None, seen=None, nodename=None, environment=None):
+
+        # values/parser in order to interpolate references in classes
+        _parser = Parser()
+
         if seen is None:
             seen = {}
 
@@ -99,6 +104,8 @@
             merge_base = Entity(self._settings, name='empty (@{0})'.format(nodename))
 
         for klass in entity.classes.as_list():
+            if merge_base is not None:
+               klass=str(_parser.parse(klass, self._settings).render(merge_base.parameters.as_dict(), {}))
             if klass not in seen:
                 try:
                     class_entity = self._storage.get_class(klass, environment, self._settings)