diff --git a/core/dumpvar.mk b/core/dumpvar.mk
index 6b5c030..6f3d14f 100644
--- a/core/dumpvar.mk
+++ b/core/dumpvar.mk
@@ -35,3 +35,7 @@
 	  printf "'\n";)
 
 endif # CALLED_FROM_SETUP
+
+ifneq (,$(RBC_DUMP_CONFIG_FILE))
+$(call dump-variables-rbc,$(RBC_DUMP_CONFIG_FILE))
+endif