diff --git a/src/umbraco.businesslogic/Exceptions/FileSecurityException.cs b/src/umbraco.businesslogic/Exceptions/FileSecurityException.cs
index 1b9f084003..188e72c97d 100644
--- a/src/umbraco.businesslogic/Exceptions/FileSecurityException.cs
+++ b/src/umbraco.businesslogic/Exceptions/FileSecurityException.cs
@@ -5,7 +5,7 @@ using System.Text;
 
 namespace umbraco.businesslogic.Exceptions
 {
-	[Obsolete("This class has been superceded by Umbraco.Core.UI.FileSecurityException")]
+	[Obsolete("This class has been superceded by Umbraco.Core.IO.FileSecurityException")]
 	public class FileSecurityException : Umbraco.Core.IO.FileSecurityException
     {
         public FileSecurityException()
diff --git a/src/umbraco.businesslogic/IO/SystemFiles.cs b/src/umbraco.businesslogic/IO/SystemFiles.cs
index 3c5841a31b..a97dc74ba1 100644
--- a/src/umbraco.businesslogic/IO/SystemFiles.cs
+++ b/src/umbraco.businesslogic/IO/SystemFiles.cs
@@ -10,7 +10,7 @@ using System.Web;
 namespace umbraco.IO
 {
 
-	[Obsolete("Use Umbraco.Core.UI.SystemFiles instead")]
+	[Obsolete("Use Umbraco.Core.IO.SystemFiles instead")]
 	public class SystemFiles
 	{
         [Obsolete("This file is no longer used and should not be accessed!")]