diff --git a/src/sakia/core/account.py b/src/sakia/core/account.py
index 723205015cb31c8b56a72b69b387f752a1f2c545..fc7f7c75b412f8fdf2a7321fd2dfeac49673ac26 100644
--- a/src/sakia/core/account.py
+++ b/src/sakia/core/account.py
@@ -72,6 +72,11 @@ class Account(QObject):
                                         self.tr("Warning : Your could miss certifications soon."),
                                         0
                                     ],
+                            'warning_revokation':
+                                    [
+                                        self.tr("Warning : If you don't renew soon, your identity will be considerd revoked."),
+                                        0
+                                    ],
                             'warning_certifying_first_time': True,
                             }
 
diff --git a/src/sakia/tests/mocks/bma/nice_blockchain.py b/src/sakia/tests/mocks/bma/nice_blockchain.py
index 9b34498a62ec973c271eca171c37f24b6df35333..c850d5e39c05b1dc7a07814d0ecef0ef112efa01 100644
--- a/src/sakia/tests/mocks/bma/nice_blockchain.py
+++ b/src/sakia/tests/mocks/bma/nice_blockchain.py
@@ -102,7 +102,7 @@ bma_certifiers_of_john = {
                 "block": 15,
                 "medianTime": 1500000000
             },
-            "sigDate": "0-E3B0C44298FC1C149AFBF4C8996FB92427AE41E4649B934CA495991B7852B855",
+            "sigDate": "101-BAD49448A1AD73C978CEDCB8F137D20A5715EBAA739DAEF76B1E28EE67B2C00C",
             "written": {
                 "number": 15,
                 "hash": "0000EC88BBBAA29D530D2B815DEE264DDC9F07F4"
@@ -135,7 +135,7 @@ bma_certified_by_doe = {
                 "block": 15,
                 "medianTime": 1500000000
             },
-            "sigDate": "0-E3B0C44298FC1C149AFBF4C8996FB92427AE41E4649B934CA495991B7852B855",
+            "sigDate": "20-7518C700E78B56CC21FB1DDC6CBAB24E0FACC9A798F5ED8736EA007F38617D67",
             "written": {
                 "number": 15,
                 "hash": "0000EC88BBBAA29D530D2B815DEE264DDC9F07F4"
diff --git a/src/sakia/tests/unit/core/test_identity.py b/src/sakia/tests/unit/core/test_identity.py
index dd7b9b7e6676b42eaee93468221d606aaff4651f..35e529b659a42460446c1a688df472ec08dd1271 100644
--- a/src/sakia/tests/unit/core/test_identity.py
+++ b/src/sakia/tests/unit/core/test_identity.py
@@ -31,6 +31,12 @@ class TestIdentity(unittest.TestCase, QuamashTest):
             if request is bma.blockchain.Block:
                 return nice_blockchain.bma_blockchain_current
 
+        def block_to_time(block_number=None):
+            if block_number == 15:
+                return 1200000200
+            else:
+                return 1500000400
+
         identity = Identity("john", "7Aqw6Efa9EzE7gtsc8SveLLrM7gm6NEGoywSv4FJx6pZ",
                             BlockUID(20, "7518C700E78B56CC21FB1DDC6CBAB24E0FACC9A798F5ED8736EA007F38617D67"),
                             LocalState.COMPLETED, BlockchainState.VALIDATED)
@@ -40,6 +46,7 @@ class TestIdentity(unittest.TestCase, QuamashTest):
 
         self.community.bma_access.future_request = CoroutineMock(side_effect=bma_access)
         self.identities_registry.from_handled_data = Mock(return_value=id_doe)
+        self.community.time = CoroutineMock(side_effect=block_to_time)
         async def exec_test():
             certifiers = await identity.certifiers_of(self.identities_registry, self.community)
 
@@ -59,6 +66,12 @@ class TestIdentity(unittest.TestCase, QuamashTest):
             if request is bma.blockchain.Block:
                 return nice_blockchain.bma_blockchain_current
 
+        def block_to_time(block_number=None):
+            if block_number == 38580:
+                return 1500000200
+            else:
+                return 1500000400
+
         identity = Identity("john", "7Aqw6Efa9EzE7gtsc8SveLLrM7gm6NEGoywSv4FJx6pZ",
                             BlockUID(20, "7518C700E78B56CC21FB1DDC6CBAB24E0FACC9A798F5ED8736EA007F38617D67"),
                             LocalState.COMPLETED, BlockchainState.VALIDATED)
@@ -68,6 +81,7 @@ class TestIdentity(unittest.TestCase, QuamashTest):
 
         self.community.bma_access.future_request = CoroutineMock(side_effect=bma_access)
         self.community.parameters = CoroutineMock(side_effect=lambda: nice_blockchain.bma_parameters)
+        self.community.time = CoroutineMock(side_effect=block_to_time)
         self.identities_registry.from_handled_data = Mock(return_value=id_doe)
         async def exec_test():
             cert_delay = await identity.cert_issuance_delay(self.identities_registry, self.community)