diff --git a/tests/scripts/func.sh b/tests/scripts/func.sh
index 4a9b324..e081224 100755
--- a/tests/scripts/func.sh
+++ b/tests/scripts/func.sh
@@ -37,7 +37,7 @@ gen_and_delete() {
     test $? -eq 0 && echo -n "." || exit $?
 }
 reset() {
-    python3 tools/pico-hsm-tool.py --pin 648219 initialize --so-pin 57621880 --silent > /dev/null 2>&1
+    python3 tools/pico-hsm-tool.py --pin 648219 initialize --so-pin 57621880 --silent --no-dev-cert > /dev/null 2>&1
     test $? -eq 0 || exit $?
 }