diff --git a/Makefile b/Makefile
index e655f5f..94cfa79 100644
--- a/Makefile
+++ b/Makefile
@@ -29,6 +29,9 @@ build: README.html
 
 install:
 	snow-chibi --impls=${SCHEME} install foreign-c-${VERSION}.tgz
+	if [ "${SCHEME}" = "gauche" ]; then \
+		cp -r foreign /usr/local/share/gauche/
+		fi
 
 uninstall:
 	snow-chibi --impls=${SCHEME} remove foreign.c