diff --git a/include/dwrite.idl b/include/dwrite.idl
index 98d55c321ac..a8bac59d393 100644
--- a/include/dwrite.idl
+++ b/include/dwrite.idl
@@ -157,7 +157,8 @@ typedef enum DWRITE_TEXT_ALIGNMENT
 {
     DWRITE_TEXT_ALIGNMENT_LEADING,
     DWRITE_TEXT_ALIGNMENT_TRAILING,
-    DWRITE_TEXT_ALIGNMENT_CENTER
+    DWRITE_TEXT_ALIGNMENT_CENTER,
+    DWRITE_TEXT_ALIGNMENT_JUSTIFIED
 } DWRITE_TEXT_ALIGNMENT;
 
 typedef enum DWRITE_PARAGRAPH_ALIGNMENT