diff --git a/makefile-templates/Makefile.lecture b/makefile-templates/Makefile.lecture
index a22063c..22b41b5 100644
--- a/makefile-templates/Makefile.lecture
+++ b/makefile-templates/Makefile.lecture
@@ -172,7 +172,7 @@
 #
 # Files to be cleaned by the various "clean" targets. The "standard" values
 # are currently:
-# TIDY_FILES=*.tmp *.out *.log *.nav *.toc *.snm *.head *.dvi \
+# TIDY_FILES+=*.tmp *.out *.log *.nav *.toc *.snm *.head *.dvi *.vrb _minted* \
 # 	slides-combined.pdf slides-notes.pdf
 # CLEAN_FILES=*.aux *.pdf
 #