diff --git a/src/TiffLibrary/Enums/TiffTag.cs b/src/TiffLibrary/Enums/TiffTag.cs
index 55a698b..1dd5e8f 100644
--- a/src/TiffLibrary/Enums/TiffTag.cs
+++ b/src/TiffLibrary/Enums/TiffTag.cs
@@ -428,6 +428,11 @@ public enum TiffTag : ushort
         /// </summary>
         JPEGTables = 0x15B,
 
+        /// <summary>
+        /// Photoshop
+        /// </summary>
+        Photoshop = 0x8649,
+
         /// <summary>
         /// ExifIfd
         /// </summary>