diff --git a/tests/documents/test_transaction.py b/tests/documents/test_transaction.py
index d9df0f7513f4025ca77621a42c586af94339185e..4cf2ead08a2ffdd0f4461eee0f4264f99f640611 100644
--- a/tests/documents/test_transaction.py
+++ b/tests/documents/test_transaction.py
@@ -17,6 +17,7 @@ import unittest
 
 import pypeg2
 
+from duniterpy.constants import G1_TEST_CURRENCY_CODENAME
 from duniterpy.documents import BlockUID
 from duniterpy.documents.transaction import (
     InputSource,
@@ -143,6 +144,37 @@ Comment: -----@@@----- (why not this comment?)
 2XiBDpuUdu6zCPWGzHXXy8c4ATSscfFQG9DjmqMZUxDZVt1Dp4m2N5oHYVUfoPdrU9SLk4qxi65RNrfCVnvQtQJk
 """
 
+# curl https://g1-test.duniter.org/blockchain/block/551979
+g1_test_tx_multi_sig_compact = """TX:10:6:6:6:1:1:0
+551977-0001108622DBA433872C547D342B033193B16E7C60C478C264DC4F1B5F36AC74
+CLxmBmQDxT4r5thHhQHQk3LVJZoerpMArkTGSfkeexkg
+5gHpK5sfijCkDDxSfiCWa3QxUsXnd38ZX3Frn7qaG42b
+6bcCUCMmTVQjqc3VGuA1xQv3ETKDV1JJDM5GGCfn58A4
+GM6jrbZSgd2WaE8LY9WP4V2v1MDpxbqMVUBBxdJswz1s
+AfkSYeiqAVHPqaKHhw52fR4rgC4QGaLGCTBP9jHfeDMQ
+8tqeZi9pKV8VFjY7CNce4FbHvv76f7y3uKcyJ865pZzB
+250:2:T:9E5AB3FAED93C9C65D4D0C16C1387592A7B9E1AE7285DB6C687FFE6AAF542CF2:0
+250:2:T:9E5AB3FAED93C9C65D4D0C16C1387592A7B9E1AE7285DB6C687FFE6AAF542CF2:1
+250:2:T:9E5AB3FAED93C9C65D4D0C16C1387592A7B9E1AE7285DB6C687FFE6AAF542CF2:2
+250:2:T:9E5AB3FAED93C9C65D4D0C16C1387592A7B9E1AE7285DB6C687FFE6AAF542CF2:3
+250:2:T:9E5AB3FAED93C9C65D4D0C16C1387592A7B9E1AE7285DB6C687FFE6AAF542CF2:4
+250:2:T:9E5AB3FAED93C9C65D4D0C16C1387592A7B9E1AE7285DB6C687FFE6AAF542CF2:5
+0:SIG(0)
+1:SIG(1)
+2:SIG(2)
+3:SIG(3)
+4:SIG(4)
+5:SIG(5)
+1500:2:SIG(AhRMHUxMPXSeG7qXZrE6qCdjwK9p2bu5Eqei7xAWVEDK)
+G1Don
+ukn60jVqcaR5ZJdGOW6aZapUSyCpRQkQWtKBcndTXtLJP5zs26bAl5XfASDCqivecuWyNedU1y2sAhA/OqcADg==
+kcybaONx12s8ZJuRVVyGrRXBgYlnUr7CGOdm0/75F9yNpQ8U/8lzyPMKugbJ6txPQ7/TBf6cS6XMTwoZH8PPBQ==
+UM9eT2iW0br42yBznimxjuVJJNFtGICUwNHspPsYOraWqk4prEte5lh9b88Q/HtDZN9o4qZzXuoVYOwbvNfgBg==
+LSqXaG4MylpG39r4OuxGbTXm/cLXOvCv60BarTR9QABW7uKjgIra5+EELRxW8Ueg9QAimfNBBIHy/ZVO+saHAQ==
+wI7cEq8nhZbi/uDOx4DawqQNoVlqpWQ1N2XgFwz0AdTubgJc8/JxDOG+xDYk8P+9m4oni3NjC58jNWzOqd+TDA==
+KjAnwP8gDyHr228py7xAFvaYoK2NQ6CHbZADK0m1qx0pxViB18m5Qs9MVAFjYTDQop9qfSie8nX/9NLdW09jBQ==
+"""
+
 input_source_str = (
     "30:0:T:6991C993631BED4733972ED7538E41CCC33660F554E3C51963E2A0AC4D6453D3:2"
 )
@@ -475,7 +507,7 @@ class TestTransaction(unittest.TestCase):
             unlocks=[Unlock(index=0, parameters=[SIGParameter(0)])],
             outputs=[OutputSource.from_inline(output_source_str)],
             comment="",
-            currency="g1-test",
+            currency=G1_TEST_CURRENCY_CODENAME,
         )
 
         # multi-signature on the transaction
@@ -488,3 +520,11 @@ class TestTransaction(unittest.TestCase):
         )
 
         self.assertTrue(transaction.check_signatures(issuers))
+
+    def test_g1_test_tx_check_signatures(self):
+        tx_multi = Transaction.from_compact(
+            g1_test_tx_multi_sig_compact,
+            G1_TEST_CURRENCY_CODENAME,
+        )
+        # multi signatures check for the pubkeys on the signatures
+        self.assertTrue(tx_multi.check_signatures(tx_multi.issuers))