diff --git a/Service/Security/SecurityContextInitializer.cs b/Service/Security/SecurityContextInitializer.cs
index 20c30d35b..f4fbbbdc7 100644
--- a/Service/Security/SecurityContextInitializer.cs
+++ b/Service/Security/SecurityContextInitializer.cs
@@ -135,15 +135,13 @@ namespace BeWo.Service.Security
 
 			try
 			{
-				if (serviceInterface == "IGkvAccountingService" && methodName == "GetFilteredGkvAbrechnungen")
+				var name = $"BeWo.Service.ServiceContracts.{serviceInterface}";
+				var t = Type.GetType(name);
+				var methodInfo = t.GetMethod(methodName);
+				var attribute = methodInfo.GetCustomAttribute<RequirePermissionAttribute>();
+				if (attribute != null)
 				{
-					var t = typeof(IGkvAccountingService);
-					var methodInfo = t.GetMethod(methodName);
-					var attribute = methodInfo.GetCustomAttribute<RequirePermissionAttribute>();
-					if (attribute != null)
-					{
-						return attribute.HasPermission(rights);
-					}
+					return attribute.HasPermission(rights);
 				}
 			}
 			catch (Exception e)