diff --git a/silkaj/cert.py b/silkaj/cert.py
index 1b2ad08fb8f00aac79b36132b34d833c724df1f7..b5e2a7cd6196a3ff1772f4ec368814afe45dcd31 100644
--- a/silkaj/cert.py
+++ b/silkaj/cert.py
@@ -24,7 +24,7 @@ from duniterpy.documents import BlockUID, block_uid, Identity, Certification
 
 from silkaj.auth import auth_method
 from silkaj.tools import message_exit, coroutine
-from silkaj.tui import convert_time
+from silkaj.tui import convert_time, pubkey_with_checksum
 from silkaj.network_tools import ClientInstance
 from silkaj.blockchain_tools import BlockchainParams, HeadBlock
 from silkaj.license import license_approval
@@ -126,7 +126,14 @@ async def certification_confirmation(
         ": #" + idty_timestamp[:15] + "… " + convert_time(block["time"], "all")
     )
     cert.append(["ID", issuer["uid"], "–>", idty_to_certify["uid"] + block_uid_date])
-    cert.append(["Pubkey", issuer_pubkey, "–>", pubkey_to_certify])
+    cert.append(
+        [
+            "Pubkey",
+            pubkey_with_checksum(issuer_pubkey),
+            "–>",
+            pubkey_with_checksum(pubkey_to_certify),
+        ]
+    )
     params = await BlockchainParams().params
     cert_begins = convert_time(time(), "date")
     cert_ends = convert_time(time() + params["sigValidity"], "date")