diff --git a/src/Makefile.PL b/src/Makefile.PL
index 3a945d4..2c1e03a 100644
--- a/src/Makefile.PL
+++ b/src/Makefile.PL
@@ -55,6 +55,10 @@ libclient$(LIB_EXT): $(OBJECT)
 	$(AR) cr libclient$(LIB_EXT) $(OBJECT)
 	$(RANLIB) libclient$(LIB_EXT)
 
+dispatch_key.o : compute_crc32.h
+
+client.o : parse_keyword.h
+
 parse_keyword.c parse_keyword.h :: genparser.pl reply.kw
 	$(PERL) genparser.pl reply.kw parse_keyword.c parse_keyword.h