diff --git a/colbert/infra/config/core_config.py b/colbert/infra/config/core_config.py
index fa5f6956..7b559007 100644
--- a/colbert/infra/config/core_config.py
+++ b/colbert/infra/config/core_config.py
@@ -14,7 +14,12 @@
 @dataclass
 class DefaultVal:
     val: Any
+    
+    def __hash__(self):
+        return hash(repr(self.val))
 
+    def __eq__(self, other):
+        self.val == other.val
 
 @dataclass
 class CoreConfig: