diff --git a/plugins/module_utils/interface_group.py b/plugins/module_utils/interface_group.py
index bffd4b07..63d9fe05 100644
--- a/plugins/module_utils/interface_group.py
+++ b/plugins/module_utils/interface_group.py
@@ -13,9 +13,13 @@
     state=dict(default='present', choices=['present', 'absent']),
     name=dict(required=True, type='str'),
     descr=dict(type='str'),
-    members=dict(required=True, type='list', elements='str'),
+    members=dict(type='list', elements='str'),
 )
 
+INTERFACE_GROUP_REQUIRED_IF = [
+    ['state', 'present', ['members']],
+]
+
 INTERFACE_GROUP_PHP_COMMAND = '''
 require_once("interfaces.inc");
 {0}
diff --git a/plugins/modules/pfsense_interface_group.py b/plugins/modules/pfsense_interface_group.py
index 4a82ad73..103150a0 100644
--- a/plugins/modules/pfsense_interface_group.py
+++ b/plugins/modules/pfsense_interface_group.py
@@ -82,6 +82,7 @@
 def main():
     module = AnsibleModule(
         argument_spec=INTERFACE_GROUP_ARGUMENT_SPEC,
+        required_if=INTERFACE_GROUP_REQUIRED_IF,
         supports_check_mode=True)
 
     pfmodule = PFSenseInterfaceGroupModule(module)