diff --git a/protocols/Makefile b/protocols/Makefile
new file mode 100644
index 0000000..1efe0bd
--- /dev/null
+++ b/protocols/Makefile
@@ -0,0 +1,8 @@
+all: schema-bundle.bin
+
+clean:
+	rm -f schema-bundle.bin
+
+schema-bundle.bin: schemas/*.prs
+	preserves-schemac schemas/*.prs > $@.tmp
+	mv $@.tmp $@