diff --git a/server-tools/instance-manager/Makefile.am b/server-tools/instance-manager/Makefile.am
index d73ba95ea0a18809f05994da328cdf86581f4338..7b1d0383f467d49634f6d50297d83daec66d98d4 100644
--- a/server-tools/instance-manager/Makefile.am
+++ b/server-tools/instance-manager/Makefile.am
@@ -50,11 +50,11 @@ libnet_a_LIBADD= $(top_builddir)/sql/password.$(OBJEXT) \
 
 CLEANFILES= net_serv.cc client_settings.h
 
-net_serv.cc: Makefile
+net_serv.cc:
 	rm -f $(srcdir)/net_serv.cc
 	@LN_CP_F@ $(top_srcdir)/sql/net_serv.cc $(srcdir)/net_serv.cc
 
-client_settings.h: Makefile
+client_settings.h:
 	rm -f $(srcdir)/client_settings.h
 	@LN_CP_F@ $(top_srcdir)/sql/client_settings.h $(srcdir)/client_settings.h