diff --git a/win32/Support/Support.vcproj b/win32/Support/Support.vcproj
index 5f7c4dcbf54..364fbf83c78 100644
--- a/win32/Support/Support.vcproj
+++ b/win32/Support/Support.vcproj
@@ -275,6 +275,10 @@
 				RelativePath="..\..\include\llvm\Support\AIXDataTypesFix.h"
 				>
 			</File>
+			<File
+				RelativePath="..\..\include\llvm\Support\AlignOf.h"
+				>
+			</File>
 			<File
 				RelativePath="..\..\include\llvm\Support\Allocator.h"
 				>