diff --git a/davmail/docker-compose.yaml b/davmail/docker-compose.yaml
index ec22ab9..fbaa1d5 100644
--- a/davmail/docker-compose.yaml
+++ b/davmail/docker-compose.yaml
@@ -26,6 +26,9 @@ services:
       - DAVMAIL_SSL_KEYSTOREFILE=${KEYSTOREFILE}
       - DAVMAIL_SSL_KEYSTOREPASS=${KEYPASS}
       - DAVMAIL_SSL_KEYPASS=${KEYPASS}
+      - DAVMAIL_SSL_CLIENTKEYSTORETYPE=PKCS12
+      - DAVMAIL_SSL_CLIENTKEYSTOREFILE=/certs/Certificate.p12
+      - DAVMAIL_SSL_CLIENTKEYSTOREPASS=STy$8YYRt$8%dSxQOsGp@Aj&KiJWYLqj
 
 
 volumes: