kc3-lang/kc3

diff --git a/Makefile b/Makefile
index d87942d..7401f4c 100644
--- a/Makefile
+++ b/Makefile
@@ -109,6 +109,7 @@ ic3_test_cov: cov
 	${MAKE} -C test ic3_test_cov
 
 install:
+	${GMAKE} -C libffi install
 	${MAKE} -C libc3 install
 	${MAKE} -C ic3 install
 	${MAKE} -C c3s install