diff --git a/APT.MicroApi/APT.SK.WebApi/Controllers/Api/EnterpriseLibraryController.cs b/APT.MicroApi/APT.SK.WebApi/Controllers/Api/EnterpriseLibraryController.cs
index 9e3dcf9..81002df 100644
--- a/APT.MicroApi/APT.SK.WebApi/Controllers/Api/EnterpriseLibraryController.cs
+++ b/APT.MicroApi/APT.SK.WebApi/Controllers/Api/EnterpriseLibraryController.cs
@@ -747,9 +747,12 @@ namespace APT.SK.WebApi.Controllers.Api
                                 if (item2 != null && item2.DEPARTMENT_ID != null)
                                 {
                                     var first = departs.FirstOrDefault(t => t.ID == item2.DEPARTMENT_ID);
-                                    var level = Enum.GetName(typeof(FMDepartmentType), first.DEPARTMENT_TYPE);
-                                    levelStr.Add(level);
-                                    departIds.Add(first.ID);
+                                    if (first != null)
+                                    {
+                                        var level = Enum.GetName(typeof(FMDepartmentType), first?.DEPARTMENT_TYPE);
+                                        levelStr.Add(level);
+                                        departIds.Add(first.ID);
+                                    }
                                 }
                             }
                         }