diff --git a/6502/gen6502/vFORTH38/Makefile b/6502/gen6502/vFORTH38/Makefile
index e838209..57c7be9 100644
--- a/6502/gen6502/vFORTH38/Makefile
+++ b/6502/gen6502/vFORTH38/Makefile
@@ -8,4 +8,4 @@ fth: $(fth_files)
 # Generic rule for converting .fb blk sources into .fth files.
 
 %.fth: %.fb fb2fth.py
-	./fb2fth.py $< $@
+	../../../tools/fb2fth.py $< $@