diff --git a/slides/Makefile b/slides/Makefile
index efaeb0c7970489b0ae44d4abc7997e06de4fd6cc..0514c3483d5574a4c74930defa4c2a13fe823782 100644
--- a/slides/Makefile
+++ b/slides/Makefile
@@ -59,4 +59,4 @@ deploy: all
 	cp *.pdf algo_cours
 
 clean:
-	rm -f *.pdf *.markdown yq_linux_amd64*
+	rm -f *.pdf *.markdown yq_linux_amd64* index.md