diff --git a/Makefile b/Makefile
index da79815..f6aa6ea 100644
--- a/Makefile
+++ b/Makefile
@@ -9,7 +9,7 @@ doc: ${MDs} docs/SUMMARY.md ${PYSVGs} ${EXTRACTMKDs}
 docs/SUMMARY.md: ./docs/generate_summary.py $(filter-out %SUMMARY.md,${MDs})
 	$< $(dir $<) > $@
 
-%_py.dot: %_dot.py docs/designs/builders/images/common.py
+%_py.dot: %_dot.py docs/designs/4.builders/images/common.py
 	python3 $<
 %.svg: %.dot
 	dot -Tsvg $< -o $@