diff --git a/config/RULES_ARCHS b/config/RULES_ARCHS
index d1f8dc714..22a90da4a 100644
--- a/config/RULES_ARCHS
+++ b/config/RULES_ARCHS
@@ -52,10 +52,10 @@ $(crossArchs) :
 endif
 
 $(hostDirs) : 
-	$(PERL) $(INSTALL_BIN)/makeMakefile.pl $@ $(BUILD_TYPE)
+	$(PERL) $(EPICS_BASE_HOST_BIN)/makeMakefile.pl $@ $(BUILD_TYPE)
 
 $(crossDirs) : 
-	$(PERL) $(INSTALL_BIN)/makeMakefile.pl $@ Vx
+	$(PERL) $(EPICS_BASE_HOST_BIN)/makeMakefile.pl $@ Vx
 
 #
 # host/cross action targets