diff --git a/windows/proj/hdf5/hdf5.vcproj b/windows/proj/hdf5/hdf5.vcproj
index 2bc2d64b04..350c2fe6bb 100644
--- a/windows/proj/hdf5/hdf5.vcproj
+++ b/windows/proj/hdf5/hdf5.vcproj
@@ -929,6 +929,10 @@
 				RelativePath="..\..\..\src\H5Ocache.c"
 				>
 			</File>
+			<File
+				RelativePath="..\..\..\src\H5Ochunk.c"
+				>
+			</File>
 			<File
 				RelativePath="..\..\..\src\H5Ocont.c"
 				>
diff --git a/windows/proj/hdf5dll/hdf5dll.vcproj b/windows/proj/hdf5dll/hdf5dll.vcproj
index c755e830dd..cfeacec975 100644
--- a/windows/proj/hdf5dll/hdf5dll.vcproj
+++ b/windows/proj/hdf5dll/hdf5dll.vcproj
@@ -1016,6 +1016,10 @@
 				RelativePath="..\..\..\src\H5Ocache.c"
 				>
 			</File>
+			<File
+				RelativePath="..\..\..\src\H5Ochunk.c"
+				>
+			</File>
 			<File
 				RelativePath="..\..\..\src\H5Ocont.c"
 				>