diff --git a/ice-9/Makefile.am b/ice-9/Makefile.am
index 721d08200..236ca62c6 100644
--- a/ice-9/Makefile.am
+++ b/ice-9/Makefile.am
@@ -32,7 +32,7 @@ ice9_sources =								   \
 	safe-r5rs.scm safe.scm session.scm slib.scm stack-catch.scm	   \
 	streams.scm string-fun.scm syncase.scm threads.scm	   	   \
 	buffered-input.scm time.scm history.scm channel.scm		   \
-        pretty-print.scm
+        pretty-print.scm ftw.scm
 
 subpkgdatadir = $(pkgdatadir)/$(VERSION)/ice-9
 subpkgdata_DATA = $(ice9_sources)