diff --git a/win32/Analysis/Analysis.vcproj b/win32/Analysis/Analysis.vcproj
index 7fbff9ca046..4776c2eafc1 100644
--- a/win32/Analysis/Analysis.vcproj
+++ b/win32/Analysis/Analysis.vcproj
@@ -256,6 +256,9 @@
 			<File
 				RelativePath="..\..\include\llvm\Analysis\Dominators.h">
 			</File>
+			<File
+				RelativePath="..\..\include\llvm\Analysis\ET-Forest.h">
+			</File>
 			<File
 				RelativePath="..\..\include\llvm\Analysis\FindUsedTypes.h">
 			</File>