diff --git a/test/convert_html.sh b/test/convert_html.sh
index 57a728f..b527225 100755
--- a/test/convert_html.sh
+++ b/test/convert_html.sh
@@ -1,3 +1,5 @@
+rm -rf test/data/html/stmicro
+
 python3 -m modm_data.pdf2html.stmicro --html --range 21:23 \
 	--document ext/test/regression/stmicro/DS10329-v4.pdf --output test/data/html/stmicro/DS10329-v4.html &