diff --git a/lib/ansible/modules/network/vyos/vyos_config.py b/lib/ansible/modules/network/vyos/vyos_config.py
index c4f0e8c948..8937bf1032 100644
--- a/lib/ansible/modules/network/vyos/vyos_config.py
+++ b/lib/ansible/modules/network/vyos/vyos_config.py
@@ -228,7 +228,7 @@ def run(module, result):
         result['changed'] = True
 
     if module._diff:
-        result['diff'] = diff
+        result['diff'] = {'prepared': diff}
 
 
 def main():