--- a/src/rpc-generator/Makefile	2022-12-22 08:32:49.839794123 +0100
+++ b/src/rpc-generator/Makefile	2022-12-22 08:34:48.185817182 +0100
@@ -31,4 +31,7 @@
 rpcgen-packlist:
 	echo $(BINDIR)/ocamlrpcgen >rpcgen-packlist
 
+main.cmo: lexer.cmo
+lexer.cmo: parser.cmo
+
 include depend
