diff --git a/Filelist.txt b/Filelist.txt
index 187c0b75..ffe00e56 100644
--- a/Filelist.txt
+++ b/Filelist.txt
@@ -179,6 +179,7 @@ oaep.h
 oids.h
 osrng.cpp
 osrng.h
+ossig.h
 panama.cpp
 panama.h
 pch.cpp