diff --git a/apps/FILES b/apps/FILES
index 2555416673..ef246b3144 100644
--- a/apps/FILES
+++ b/apps/FILES
@@ -43,7 +43,7 @@ plugins/chessbox/*.lds
 plugins/chessbox/*.[ch]
 plugins/pacbox/Makefile
 plugins/pacbox/readme.txt
-plugins/pacbox/*.[ch]
+plugins/pacbox/*.[chS]
 plugins/midi/*.[ch]
 codecs/SOURCES
 codecs/*.[ch]