Added a missing dependency for testlist.c files.

diff --git a/dlls/Maketest.rules.in b/dlls/Maketest.rules.in
index ecff582..fb6dc35 100644
--- a/dlls/Maketest.rules.in
+++ b/dlls/Maketest.rules.in
@@ -50,7 +50,7 @@
 
 # Rules for building test list
 
-$(TESTLIST): Makefile.in
+$(TESTLIST): Makefile.in $(TOPSRCDIR)/tools/make_ctests
 	$(TOPSRCDIR)/tools/make_ctests $(CTESTS) >$(TESTLIST) || $(RM) $(TESTLIST)
 
 depend: $(TESTLIST)