diff --git a/org.jdrupes.vmoperator.vmaccess/src/org/jdrupes/vmoperator/vmaccess/VmAccess.java b/org.jdrupes.vmoperator.vmaccess/src/org/jdrupes/vmoperator/vmaccess/VmAccess.java
index 0015d6c94..bd9a80290 100644
--- a/org.jdrupes.vmoperator.vmaccess/src/org/jdrupes/vmoperator/vmaccess/VmAccess.java
+++ b/org.jdrupes.vmoperator.vmaccess/src/org/jdrupes/vmoperator/vmaccess/VmAccess.java
@@ -198,9 +198,8 @@ public void onConfigurationUpdate(ConfigurationUpdate event) {
                     // Delete connection file
                     deleteConnectionFile
                         = Optional.ofNullable(c.get("deleteConnectionFile"))
-                            .filter(v -> v instanceof String)
-                            .map(v -> (String) v)
-                            .map(Boolean::parseBoolean).orElse(true);
+                            .map(Object::toString).map(Boolean::parseBoolean)
+                            .orElse(true);
 
                     // Users or roles for which previews should be synchronized
                     syncUsers = ((List<Map<String, String>>) c.getOrDefault(