diff --git a/presentations/2022-02-03_group_meeting/Makefile b/presentations/2022-02-03_group_meeting/Makefile
index 5a74ede..449c34a 100644
--- a/presentations/2022-02-03_group_meeting/Makefile
+++ b/presentations/2022-02-03_group_meeting/Makefile
@@ -21,4 +21,4 @@ dist-clean: clean
 	@rm -vf *.pdf *.eps *.dvi *.ps
 
 clean:
-	@rm -vf *.dat *.log *.out *.aux *.nav *.snm *.toc *.vrb *~ *.fls *.fdb_latexmk
+	@rm -vf *.dat *.log *.out *.aux *.nav *.snm *.toc *.vrb *~ *.fls *.fdb_latexmk *-blx.bib *.bbl *.blg *.run.xml