diff --git a/demw-common/overlay/opt/eidas-middleware/configuration/POSeIDAS.xml.sh b/demw-common/overlay/opt/eidas-middleware/configuration/POSeIDAS.xml.sh
index 044b1bfa..65e0f2b0 100644
--- a/demw-common/overlay/opt/eidas-middleware/configuration/POSeIDAS.xml.sh
+++ b/demw-common/overlay/opt/eidas-middleware/configuration/POSeIDAS.xml.sh
@@ -21,7 +21,7 @@ cat<<EOF
                 <sslKeys id="default">
                     <serverCertificate>${DEMW_TLS_SERVER_CERT}</serverCertificate>
                     <clientCertificate>${DEMW_TLS_CLIENT_CERT}</clientCertificate>
-                    <clientKey>${DEMW_TLS_CLIENT_CERT}</clientKey>
+                    <clientKey>${DEMW_TLS_CLIENT_KEY}</clientKey>
                 </sslKeys>
                 <terminalAuthService sslKeysId="default">
                     <url>https://berca-ps.d-trust.net/ps/dvca-at</url>