diff --git a/tests/unit/plugins/action/fixtures/synchronize/basic_become/meta.yaml b/tests/unit/plugins/action/fixtures/synchronize/basic_become/meta.yaml
index 1ba3b4a..8435735 100644
--- a/tests/unit/plugins/action/fixtures/synchronize/basic_become/meta.yaml
+++ b/tests/unit/plugins/action/fixtures/synchronize/basic_become/meta.yaml
@@ -25,7 +25,8 @@ asserts:
     - "self.execute_called"
     - "self.final_module_args['_local_rsync_path'] == 'rsync'"
     # this is a crucial aspect of this scenario ...
-    - "self.final_module_args['rsync_path'] == 'sudo rsync'"
+    # note: become_user None -> root
+    - "self.final_module_args['rsync_path'] == 'sudo -u root rsync'"
     - "self.final_module_args['src'] == '/tmp/deleteme'"
     - "self.final_module_args['dest'] == 'root@el6host:/tmp/deleteme'"
     - "self.task.become == True"
diff --git a/tests/unit/plugins/action/fixtures/synchronize/basic_become_cli/meta.yaml b/tests/unit/plugins/action/fixtures/synchronize/basic_become_cli/meta.yaml
index 5e55801..294bfde 100644
--- a/tests/unit/plugins/action/fixtures/synchronize/basic_become_cli/meta.yaml
+++ b/tests/unit/plugins/action/fixtures/synchronize/basic_become_cli/meta.yaml
@@ -25,7 +25,8 @@ asserts:
     - "self.execute_called"
     - "self.final_module_args['_local_rsync_path'] == 'rsync'"
     # this is a crucial aspect of this scenario ...
-    - "self.final_module_args['rsync_path'] == 'sudo rsync'"
+    # note: become_user None -> root
+    - "self.final_module_args['rsync_path'] == 'sudo -u root rsync'"
     - "self.final_module_args['src'] == '/tmp/deleteme'"
     - "self.final_module_args['dest'] == 'root@el6host:/tmp/deleteme'"
     - "self.task.become == None"