diff --git a/server/bundles/io.cloudbeaver.model/src/io/cloudbeaver/model/app/BaseWebAppConfiguration.java b/server/bundles/io.cloudbeaver.model/src/io/cloudbeaver/model/app/BaseWebAppConfiguration.java
index f7a79a460e..f73dab7cf8 100644
--- a/server/bundles/io.cloudbeaver.model/src/io/cloudbeaver/model/app/BaseWebAppConfiguration.java
+++ b/server/bundles/io.cloudbeaver.model/src/io/cloudbeaver/model/app/BaseWebAppConfiguration.java
@@ -29,7 +29,7 @@ public abstract class BaseWebAppConfiguration implements WebAppConfiguration {
     public static final String DEFAULT_APP_ANONYMOUS_TEAM_NAME = "user";
 
     protected final Map<String, Object> plugins;
-    protected String defaultUserTeam;
+    protected String defaultUserTeam = DEFAULT_APP_ANONYMOUS_TEAM_NAME;
     protected boolean resourceManagerEnabled;
     protected boolean showReadOnlyConnectionInfo;
     protected String[] enabledFeatures;
diff --git a/server/bundles/io.cloudbeaver.server/src/io/cloudbeaver/server/CBApplication.java b/server/bundles/io.cloudbeaver.server/src/io/cloudbeaver/server/CBApplication.java
index 89fa913b67..5ca711678b 100644
--- a/server/bundles/io.cloudbeaver.server/src/io/cloudbeaver/server/CBApplication.java
+++ b/server/bundles/io.cloudbeaver.server/src/io/cloudbeaver/server/CBApplication.java
@@ -26,6 +26,7 @@ import io.cloudbeaver.registry.WebServiceRegistry;
 import io.cloudbeaver.server.jetty.CBJettyServer;
 import io.cloudbeaver.service.DBWServiceInitializer;
 import io.cloudbeaver.service.DBWServiceServerConfigurator;
+import io.cloudbeaver.service.security.CBEmbeddedSecurityController;
 import io.cloudbeaver.service.security.SMControllerConfiguration;
 import io.cloudbeaver.service.session.WebSessionManager;
 import io.cloudbeaver.utils.WebDataSourceUtils;
@@ -199,6 +200,9 @@ public abstract class CBApplication<T extends CBServerConfig> extends BaseWebApp
             if (!loadServerConfiguration()) {
                 return;
             }
+            if (CommonUtils.isEmpty(this.getAppConfiguration().getDefaultUserTeam())) {
+                throw new DBException("Default user team must be specified");
+            }
         } catch (DBException e) {
             log.error(e);
             return;