diff --git a/changelogs/fragments/239-wireless-tx-power.yml b/changelogs/fragments/239-wireless-tx-power.yml
new file mode 100644
index 0000000..560639b
--- /dev/null
+++ b/changelogs/fragments/239-wireless-tx-power.yml
@@ -0,0 +1,2 @@
+minor_changes:
+  - api_info, api_modify - add support for the ``tx-power`` attribute in ``interface wireless`` (https://github.com/ansible-collections/community.routeros/pull/239).
diff --git a/plugins/module_utils/_api_data.py b/plugins/module_utils/_api_data.py
index 3abd0f1..435e86b 100644
--- a/plugins/module_utils/_api_data.py
+++ b/plugins/module_utils/_api_data.py
@@ -1882,6 +1882,7 @@ PATHS = {
                 'supported-rates-b': KeyInfo(),
                 'tdma-period-size': KeyInfo(default=2),
                 'tx-chains': KeyInfo(),
+                'tx-power': KeyInfo(default=''),
                 'tx-power-mode': KeyInfo(default='default'),
                 'update-stats-interval': KeyInfo(default='disabled'),
                 'vlan-id': KeyInfo(default=1),