diff --git a/MANIFEST b/MANIFEST
index af362ba144..5321cb7d6d 100644
--- a/MANIFEST
+++ b/MANIFEST
@@ -1612,6 +1612,7 @@
 ./tools/h5diff/testfiles/h5diff_481.txt
 ./tools/h5diff/testfiles/h5diff_482.txt
 ./tools/h5diff/testfiles/h5diff_483.txt
+./tools/h5diff/testfiles/h5diff_484.txt
 ./tools/h5diff/testfiles/h5diff_500.txt
 ./tools/h5diff/testfiles/h5diff_501.txt
 ./tools/h5diff/testfiles/h5diff_502.txt