diff --git a/src/edutap/wallet_google/models/primitives/enums.py b/src/edutap/wallet_google/models/primitives/enums.py
index 9815400..2915175 100644
--- a/src/edutap/wallet_google/models/primitives/enums.py
+++ b/src/edutap/wallet_google/models/primitives/enums.py
@@ -33,7 +33,18 @@ def __new__(cls: type["CamelCaseAliasEnum"], value: str) -> "CamelCaseAliasEnum"
         cls._member_names_.append(camel)
         return obj
 
-
+    def __eq__(self, other: Enum) -> bool:
+        """Allow comparison with the camelcase value.
+        take into account that UPPER_CASE and camelCase are equal
+        """
+        if self.value == other.value:
+            return True
+        else:
+            v1 = self.value.lower().replace("_", "")
+            v2 = other.value.lower().replace("_", "")
+            return v1 == v2
+        
+    
 class Action(CamelCaseAliasEnum):
     """
     see: https://developers.google.com/wallet/generic/rest/v1/smarttap#action
diff --git a/tests/test_enum.py b/tests/test_enum.py
index 31665ac..16ecd4c 100644
--- a/tests/test_enum.py
+++ b/tests/test_enum.py
@@ -12,6 +12,8 @@ def test_action_enum():
 
     assert Action("ACTION_UNSPECIFIED") == Action.ACTION_UNSPECIFIED
     assert Action("actionUnspecified") == Action.ACTION_UNSPECIFIED
+    
+    assert Action("S2AP") != Action.ACTION_UNSPECIFIED
 
     assert Action("S2AP") == Action.S2AP
     assert Action("s2ap") == Action.S2AP