diff --git a/changelogs/fragments/1527-fix-nios-api-member-normalize.yaml b/changelogs/fragments/1527-fix-nios-api-member-normalize.yaml
new file mode 100644
index 0000000000..4e4720487c
--- /dev/null
+++ b/changelogs/fragments/1527-fix-nios-api-member-normalize.yaml
@@ -0,0 +1,3 @@
+---
+bugfixes:
+    - nios_member - fix Python 3 compatibility with nios api ``member_normalize`` function (https://github.com/ansible-collections/community.general/issues/1526).
diff --git a/plugins/module_utils/net_tools/nios/api.py b/plugins/module_utils/net_tools/nios/api.py
index b01a54a400..6cded8e1c8 100644
--- a/plugins/module_utils/net_tools/nios/api.py
+++ b/plugins/module_utils/net_tools/nios/api.py
@@ -144,7 +144,7 @@ def member_normalize(member_spec):
                        'pre_provisioning', 'network_setting', 'v6_network_setting',
                        'ha_port_setting', 'lan_port_setting', 'lan2_physical_setting',
                        'lan_ha_port_setting', 'mgmt_network_setting', 'v6_mgmt_network_setting']
-    for key in member_spec.keys():
+    for key in list(member_spec.keys()):
         if key in member_elements and member_spec[key] is not None:
             member_spec[key] = member_spec[key][0]
         if isinstance(member_spec[key], dict):