diff --git a/lib/Makefile.am b/lib/Makefile.am
index b315609..b6ce20e 100644
--- a/lib/Makefile.am
+++ b/lib/Makefile.am
@@ -102,6 +102,10 @@
 SUBDIRS += cl
 endif
 
+if WITH_SWIFT
+SUBDIRS += swift
+endif
+
 # All of the libs that don't use Automake need to go in here
 # so they will end up in our release tarballs.
 EXTRA_DIST = \