diff --git a/ircrobots/__init__.py b/ircrobots/__init__.py
index 6b4d641..563abc7 100644
--- a/ircrobots/__init__.py
+++ b/ircrobots/__init__.py
@@ -1,5 +1,5 @@
 from .bot    import Bot
 from .server import Server
-from .params import (ConnectionParams, ClientTLSCertificate, SASLUserPass, SASLExternal, SASLSCRAM,
+from .params import (ConnectionParams, ClientTLSKeypair, SASLUserPass, SASLExternal, SASLSCRAM,
     STSPolicy, ResumePolicy)
 from .ircv3  import Capability
diff --git a/ircrobots/interface.py b/ircrobots/interface.py
index 29db989..24b25d1 100644
--- a/ircrobots/interface.py
+++ b/ircrobots/interface.py
@@ -5,7 +5,7 @@ from enum    import IntEnum
 from ircstates import Server, Emit
 from irctokens import Line, Hostmask
 
-from .params   import ConnectionParams, SASLParams, STSPolicy, ResumePolicy, ClientTLSCertificate
+from .params   import ConnectionParams, SASLParams, STSPolicy, ResumePolicy, ClientTLSKeypair
 
 class ITCPReader(object):
     async def read(self, byte_count: int):
@@ -28,7 +28,7 @@ class ITCPTransport(object):
             port:        int,
             tls:         bool,
             tls_verify:  bool=True,
-            certificate: Optional[ClientTLSCertificate]=None,
+            certificate: Optional[ClientTLSKeypair]=None,
             bindhost:    Optional[str]=None
             ) -> Tuple[ITCPReader, ITCPWriter]:
         pass
diff --git a/ircrobots/params.py b/ircrobots/params.py
index ae02116..5a448f1 100644
--- a/ircrobots/params.py
+++ b/ircrobots/params.py
@@ -29,7 +29,7 @@ class ResumePolicy(object):
     token:   str
 
 @dataclass
-class ClientTLSCertificate(object):
+class ClientTLSKeypair(object):
     certfile: str
     keyfile: Optional[str] = None
     password: Optional[str] = None
@@ -48,7 +48,7 @@ class ConnectionParams(object):
     password:    Optional[str] = None
     tls_verify:  bool = True
     sasl:        Optional[SASLParams] = None
-    certificate: Optional[ClientTLSCertificate] = None
+    certificate: Optional[ClientTLSKeypair] = None
 
     sts:    Optional[STSPolicy]    = None
     resume: Optional[ResumePolicy] = None
diff --git a/ircrobots/security.py b/ircrobots/security.py
index 31a3575..65ac58b 100644
--- a/ircrobots/security.py
+++ b/ircrobots/security.py
@@ -1,11 +1,11 @@
 import ssl
 
 from typing  import Optional
-from .params import ClientTLSCertificate
+from .params import ClientTLSKeypair
 
 def tls_context(
     verify: bool=True,
-    certificate: Optional[ClientTLSCertificate]=None
+    certificate: Optional[ClientTLSKeypair]=None
     ) -> ssl.SSLContext:
 
     context = ssl.SSLContext(ssl.PROTOCOL_TLS)
diff --git a/ircrobots/transport.py b/ircrobots/transport.py
index 8dfaff2..3f4b939 100644
--- a/ircrobots/transport.py
+++ b/ircrobots/transport.py
@@ -4,7 +4,7 @@ from asyncio       import StreamReader, StreamWriter
 from async_stagger import open_connection
 
 from .interface import ITCPTransport, ITCPReader, ITCPWriter
-from .params    import ClientTLSCertificate
+from .params    import ClientTLSKeypair
 from .security  import tls_context
 
 class TCPReader(ITCPReader):
@@ -37,7 +37,7 @@ class TCPTransport(ITCPTransport):
             port:        int,
             tls:         bool,
             tls_verify:  bool=True,
-            certificate: Optional[ClientTLSCertificate]=None,
+            certificate: Optional[ClientTLSKeypair]=None,
             bindhost:    Optional[str]=None
             ) -> Tuple[ITCPReader, ITCPWriter]: