diff --git a/DiscImageChef.Devices/ChangeLog b/DiscImageChef.Devices/ChangeLog
index 9dd69ba0..3f06ab50 100644
--- a/DiscImageChef.Devices/ChangeLog
+++ b/DiscImageChef.Devices/ChangeLog
@@ -1,3 +1,8 @@
+2016-01-13  Natalia Portillo  <claunia@claunia.com>
+
+	* Enums.cs:
+	  Added M-Systems vendor commands.
+
 2016-01-13  Natalia Portillo  <claunia@claunia.com>
 
 	* Enums.cs:
diff --git a/DiscImageChef.Devices/Enums.cs b/DiscImageChef.Devices/Enums.cs
index 123e4329..4cd7a23d 100644
--- a/DiscImageChef.Devices/Enums.cs
+++ b/DiscImageChef.Devices/Enums.cs
@@ -2655,8 +2655,19 @@ namespace DiscImageChef.Devices
         /// <summary>
         /// Used to display a message on the operator panel
         /// </summary>
-        Fujitsu_Display = 0xCF
+        Fujitsu_Display = 0xCF,
         #endregion Fujitsu vendor commands
+
+        #region M-Systems vendor commands
+        /// <summary>
+        /// Securely erases all flash blocks, including defective, spared and unused
+        /// </summary>
+        MSystems_SecurityErase = 0xFF,
+        /// <summary>
+        /// Securely erases all flash blocks, including defective, spared and unused
+        /// </summary>
+        MSystems_SecurityEraseOld = 0xDF,
+        #endregion M-Systems vendor commands
     }
     #endregion SCSI Commands