diff --git a/CHANGELOG.md b/CHANGELOG.md
index 214c4cec52..fb30d24453 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -17,6 +17,7 @@ All notable changes to this project will be documented in this file.
 
 ### Changed
 
+- Fix one_manager_agent_env pytest marker for System Tests ([#4782](https://github.com/wazuh/wazuh-qa/pull/4782)) \- (Tests)
 - Updated Filebeat module to 0.4 ([#4775](https://github.com/wazuh/wazuh-qa/pull/4775)) \- (Framework)
 - Include ATP repository update before the installation of Ubuntu E2E agent installation ([#4761](https://github.com/wazuh/wazuh-qa/pull/4761)) \- (Framework)
 - Enhance macOS deployment ansible taks ([#4685](https://github.com/wazuh/wazuh-qa/pull/4685)) \- (Framework)
diff --git a/tests/system/test_cluster/test_correct_merged_file_generation/test_correct_merged_file_generation.py b/tests/system/test_cluster/test_correct_merged_file_generation/test_correct_merged_file_generation.py
index 6fd1244126..94a045b05e 100644
--- a/tests/system/test_cluster/test_correct_merged_file_generation/test_correct_merged_file_generation.py
+++ b/tests/system/test_cluster/test_correct_merged_file_generation/test_correct_merged_file_generation.py
@@ -35,7 +35,7 @@
 from system import (assign_agent_to_new_group, clean_cluster_logs, create_new_agent_group, delete_agent_group,
                     restart_cluster)
 
-pytestmark = [pytest.mark.cluster, pytest.mark.one_manager_agent_env]
+pytestmark = [pytest.mark.one_manager_agent_env]
 
 agent_conf_file = os.path.join(os.path.dirname(os.path.realpath(__file__)),
                                '..', 'provisioning', 'one_manager_agent', 'roles', 'agent-role', 'files', 'ossec.conf')