diff --git a/duniterpy/key/ascii_armor.py b/duniterpy/key/ascii_armor.py
index 3879ee3931f932e485edde1cd8f7a2e752fb22e9..92defa46ef49ad0e6079b129c43872878f7bedc5 100644
--- a/duniterpy/key/ascii_armor.py
+++ b/duniterpy/key/ascii_armor.py
@@ -22,7 +22,9 @@ from typing import Any, Dict, List, Optional
 import libnacl
 from libnacl.version import version as libnacl_version
 
-from duniterpy.key import PublicKey, SigningKey, VerifyingKey
+from .encryption_key import PublicKey
+from .signing_key import SigningKey
+from .verifying_key import VerifyingKey
 
 # Headers constants
 BEGIN_MESSAGE_HEADER = "-----BEGIN DUNITER MESSAGE-----"