diff --git a/documentation/app_class_diagram.mdj b/documentation/app_class_diagram.mdj
index 5a0f446..35799ba 100644
--- a/documentation/app_class_diagram.mdj
+++ b/documentation/app_class_diagram.mdj
@@ -13077,7 +13077,7 @@
 											"top": 1605,
 											"width": 261.19970703125,
 											"height": 13,
-											"text": "+IOManager(pcf: PCF8574&)",
+											"text": "#IOManager(pcf: PCF8574&)",
 											"horizontalAlignment": 0
 										},
 										{
@@ -18819,6 +18819,7 @@
 								"$ref": "AAAAAAFqZZNINVQZxXY="
 							},
 							"name": "IOManager",
+							"visibility": "protected",
 							"parameters": [
 								{
 									"_type": "UMLParameter",