diff --git a/io/reduced-foam-extend/src/foam/Make/files b/io/reduced-foam-extend/src/foam/Make/files
index 2e2d83198c55e512e7047338e1cf2a37d2cf14e2..574a1635e509dfbeef1df9fdffb6fa7a1a3312a7 100644
--- a/io/reduced-foam-extend/src/foam/Make/files
+++ b/io/reduced-foam-extend/src/foam/Make/files
@@ -130,6 +130,7 @@ $(Streams)/token/tokenIO.C
 
 IOstreams = $(Streams)/IOstreams
 $(IOstreams)/IOstream.C
+$(IOstreams)/IOstreamOption.C
 $(IOstreams)/Istream.C
 $(IOstreams)/Ostream.C