diff --git a/src/main/java/ch/psi/daq/queryrest/config/QueryRestConfig.java b/src/main/java/ch/psi/daq/queryrest/config/QueryRestConfig.java
index 3fca01e..2cd2048 100644
--- a/src/main/java/ch/psi/daq/queryrest/config/QueryRestConfig.java
+++ b/src/main/java/ch/psi/daq/queryrest/config/QueryRestConfig.java
@@ -6,13 +6,16 @@ import java.util.EnumMap;
 import java.util.LinkedHashSet;
 import java.util.List;
 import java.util.Map;
+import java.util.Map.Entry;
 import java.util.Set;
 import java.util.function.BiFunction;
 import java.util.function.Function;
+import java.util.stream.Collectors;
 
 import javax.annotation.PostConstruct;
 import javax.annotation.Resource;
 
+import org.apache.commons.lang3.tuple.Pair;
 import org.msgpack.jackson.dataformat.MessagePackFactory;
 import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
@@ -429,8 +432,9 @@ public class QueryRestConfig { // extends WebMvcConfigurerAdapter {
 
       final String newDefaultProtocol = "https";
       final String newDefaultHost = "data-api.psi.ch";
-      
- LOGGER.warn("\nSet back to 443!\n#####");     
+
+
+      LOGGER.warn("\nSet back to 443!\n#####");
       final int newDefaultPort = 8080;
       // this should be overwritten
       final String newDefaultPath = "";
@@ -450,11 +454,25 @@ public class QueryRestConfig { // extends WebMvcConfigurerAdapter {
    @Bean(name = BEAN_NAME_QUERY_SERVER_BACKENDS)
    @Lazy
    public Map<Backend, String> queryServerBackends() {
-      final BiFunction<String, String, BackendType> typeCreator =
-            (name, queryServer) -> new DomainBackendType(name, queryServer);
+      final BiFunction<String, Pair<String, String>, BackendType> typeCreator =
+            (name, serverAddresses) -> new DomainBackendType(
+                  name,
+                  serverAddresses.getLeft(),
+                  serverAddresses.getRight());
       @SuppressWarnings("unchecked")
       final List<String> queryServerAddresses =
             context.getBean(QueryRestConfig.BEAN_NAME_QUERY_SERVER_ADDRESSES, List.class);
-      return RestHelper.getBackends(context, queryServerAddresses, typeCreator);
+      return RestHelper.getBackends(
+            context,
+            queryServerAddresses.stream()
+                  .map(queryServer -> Pair.of(queryServer, null)),
+            serverAddresses -> serverAddresses.getLeft(),
+            DomainConfig.PATH_BACKENDS_BY_ID,
+            typeCreator)
+            .entrySet()
+            .stream()
+            .collect(Collectors.toMap(
+                  Entry::getKey,
+                  entry -> entry.getValue().getLeft()));
    }
 }