diff --git a/Core/Resgrid.Model/DepartmentModuleSettings.cs b/Core/Resgrid.Model/DepartmentModuleSettings.cs
index 77f86940..a224f38d 100644
--- a/Core/Resgrid.Model/DepartmentModuleSettings.cs
+++ b/Core/Resgrid.Model/DepartmentModuleSettings.cs
@@ -14,7 +14,7 @@ public class DepartmentModuleSettings
 
 		[ProtoMember(3)]
 		public bool MappingDisabled { get; set; }
-		[ProtoMember(41)]
+		[ProtoMember(4)]
 		public string MappingNameOverride { get; set; }
 
 		[ProtoMember(5)]