diff --git a/dnsapi/dns_he.sh b/dnsapi/dns_he.sh
index 8e6c06db..c17132b7 100755
--- a/dnsapi/dns_he.sh
+++ b/dnsapi/dns_he.sh
@@ -31,6 +31,7 @@ dns_he_add() {
   if [ ! -z "$HE_OTP_Secret" ]; then
     _saveaccountconf HE_OTP_Secret "$HE_OTP_Secret"
   else
+    HE_OTP_Secret=
     _clearaccountconf HE_OTP_Secret
   fi