diff --git a/targettest/cbm/Makefile b/targettest/cbm/Makefile
index 73b51fc76..3c0678c32 100644
--- a/targettest/cbm/Makefile
+++ b/targettest/cbm/Makefile
@@ -40,7 +40,11 @@ petscii.prg:
 endif
 
 cbmdir-test.prg: cbmdir-test.c
+ifeq ($(SYS),vic20)
+	$(CL) -C vic20-32k.cfg -Oris -o $@ $<
+else
 	$(CL) -t $(SYS) -Oris -o $@ $<
+endif
 
 clean:
 	@$(DEL) *.lst petscii.prg cbmdir-test.prg 2>$(NULLDEV)