diff --git a/lam-packaging/docker/start.sh b/lam-packaging/docker/start.sh
index a93ed4911..21c0d02ff 100755
--- a/lam-packaging/docker/start.sh
+++ b/lam-packaging/docker/start.sh
@@ -3,7 +3,8 @@
 #  Docker start script for LDAP Account Manager
 
 #  This code is part of LDAP Account Manager (http://www.ldap-account-manager.org/)
-#  Copyright (C) 2019  Felix Bartels
+#  Copyright (C) 2019        Felix Bartels
+#                2019 - 2024 Roland Gruber
 
 #  This program is free software; you can redistribute it and/or modify
 #  it under the terms of the GNU General Public License as published by
@@ -58,14 +59,14 @@ if [ "$LAM_SKIP_PRECONFIGURE" != "true" ]; then
   LAM_CONFIGURATION_PASSWORD="${LAM_CONFIGURATION_PASSWORD:-}"
 
   sed -i -f- /etc/ldap-account-manager/config.cfg <<- EOF
-    s|^password:.*|password: ${LAM_PASSWORD_SSHA}|;
-    s|^license:.*|license: ${LAM_LICENSE}|;
-    s|^configDatabaseType:.*|configDatabaseType: ${LAM_CONFIGURATION_DATABASE}|;
-    s|^configDatabaseServer:.*|configDatabaseServer: ${LAM_CONFIGURATION_HOST}|;
-    s|^configDatabasePort:.*|configDatabasePort: ${LAM_CONFIGURATION_PORT}|;
-    s|^configDatabaseName:.*|configDatabaseName: ${LAM_CONFIGURATION_DATABASE_NAME}|;
-    s|^configDatabaseUser:.*|configDatabaseUser: ${LAM_CONFIGURATION_USER}|;
-    s|^configDatabasePassword:.*|configDatabasePassword: ${LAM_CONFIGURATION_PASSWORD}|;
+    s|"password":"[^"]*"|"password":"${LAM_PASSWORD_SSHA}"|;
+    s|"license":"[^"]*"|"license":"${LAM_LICENSE}"|;
+    s|"configDatabaseType":"[^"]*"|"configDatabaseType":"${LAM_CONFIGURATION_DATABASE}"|;
+    s|"configDatabaseServer":"[^"]*"|"configDatabaseServer":"${LAM_CONFIGURATION_HOST}"|;
+    s|"configDatabasePort":"[^"]*"|"configDatabasePort":"${LAM_CONFIGURATION_PORT}"|;
+    s|"configDatabaseName":"[^"]*"|"configDatabaseName":"${LAM_CONFIGURATION_DATABASE_NAME}"|;
+    s|"configDatabaseUser":"[^"]*"|"configDatabaseUser":"${LAM_CONFIGURATION_USER}"|;
+    s|"configDatabasePassword":"[^"]*"|"configDatabasePassword":"${LAM_CONFIGURATION_PASSWORD}"|;
 EOF
   unset LAM_PASSWORD
 
@@ -79,13 +80,13 @@ EOF
   fi
 
   sed -i -f- /var/lib/ldap-account-manager/config/lam.conf <<- EOF
-    s|^ServerURL:.*|ServerURL: ${LDAP_SERVER}|;
-    s|^Admins:.*|Admins: ${LDAP_ADMIN_USER}|;
-    s|^Passwd:.*|Passwd: ${LAM_PASSWORD_SSHA}|;
-    s|^tools: treeViewSuffix:.*|tools: treeViewSuffix: ${LDAP_BASE_DN}|;
-    s|^defaultLanguage:.*|defaultLanguage: ${LAM_LANG}.utf8|;
-    s|^.*suffix_user:.*|types: suffix_user: ${LDAP_USERS_DN}|;
-    s|^.*suffix_group:.*|types: suffix_group: ${LDAP_GROUPS_DN}|;
+    s|"ServerURL":"[^"]*"|"ServerURL":"${LDAP_SERVER}"|;
+    s|"Admins":"[^"]*"|"Admins":"${LDAP_ADMIN_USER}"|;
+    s|"Passwd":"[^"]*"|"Passwd":"${LAM_PASSWORD_SSHA}"|;
+    s|"treeViewSuffix":"[^"]*"|"treeViewSuffix":"${LDAP_BASE_DN}"|;
+    s|"defaultLanguage":"[^"]*"|"defaultLanguage":"${LAM_LANG}.utf8"|;
+    s|"suffix_user":"[^"]*"|"suffix_user":"${LDAP_USERS_DN}"|;
+    s|"suffix_group":"[^"]*"|"suffix_group":"${LDAP_GROUPS_DN}"|;
 EOF
 
 fi