diff --git a/jaas/modules/src/main/java/org/apache/karaf/jaas/modules/properties/PropertiesBackingEngine.java b/jaas/modules/src/main/java/org/apache/karaf/jaas/modules/properties/PropertiesBackingEngine.java
index fb6d3c8..ff41254 100644
--- a/jaas/modules/src/main/java/org/apache/karaf/jaas/modules/properties/PropertiesBackingEngine.java
+++ b/jaas/modules/src/main/java/org/apache/karaf/jaas/modules/properties/PropertiesBackingEngine.java
@@ -97,7 +97,11 @@ public class PropertiesBackingEngine implements BackingEngine {
      */
     public void deleteUser(String username) {
         users.remove(username);
-
+        try {
+            users.save();
+        } catch (Exception ex) {
+            LOGGER.error("Cannot remove users file,", ex);
+        }
     }
 
     /**