diff --git a/MANIFEST b/MANIFEST
index 1b9a63ffa3..54f09f9c41 100644
--- a/MANIFEST
+++ b/MANIFEST
@@ -781,6 +781,7 @@
 ./src/H5Bprivate.h
 ./src/H5Bpublic.h
 ./src/H5C.c
+./src/H5Cpkg.h
 ./src/H5Cprivate.h
 ./src/H5Cpublic.h
 ./src/H5D.c