diff --git a/Make.rules.in b/Make.rules.in
index 230bd69eb3..b8667e32bd 100644
--- a/Make.rules.in
+++ b/Make.rules.in
@@ -271,6 +271,8 @@ $(MC_SRCS:.mc=.mc.rc): $(WMC)
 
 $(IDL_SRCS:.idl=.h): $(WIDL)
 
+$(RC_TLB:.idl=.tlb): $(WIDL)
+
 $(SUBDIRS): dummy
 	@cd $@ && $(MAKE)