diff --git a/base/univention-config-registry/python/univention/config_registry/handler.py b/base/univention-config-registry/python/univention/config_registry/handler.py
index 2ccfc82..06fcfe4 100644
--- a/base/univention-config-registry/python/univention/config_registry/handler.py
+++ b/base/univention-config-registry/python/univention/config_registry/handler.py
@@ -467,6 +467,14 @@ def __init__(self, module):
 		super(ConfigHandlerModule, self).__init__()
 		self.module = module
 
+	def __hash__(self):
+		return hash(self.module)
+
+	def __eq__(self, other):
+		if isinstance(other, type(self)):
+			return self.module == other.module
+		return NotImplemented
+
 	def __call__(self, args):
 		"""Call python module after change."""
 		ucr, changed = args