diff --git a/Makefile b/Makefile
index cdf94554..0fec8496 100644
--- a/Makefile
+++ b/Makefile
@@ -32,7 +32,8 @@ SMODULES = \
   scheme/cyclone/transforms \
   scheme/cyclone/util \
   srfi/9 \
-  srfi/18
+  srfi/18 \
+  srfi/69
 SLDFILES = $(addsuffix .sld, $(SMODULES))
 COBJECTS=$(SLDFILES:.sld=.o)