diff --git a/files/nginx/setup-odk.sh b/files/nginx/setup-odk.sh
index 8e308be32..c30f80069 100755
--- a/files/nginx/setup-odk.sh
+++ b/files/nginx/setup-odk.sh
@@ -28,7 +28,10 @@ if [ "$SSL_TYPE" != "upstream" ] && [ ! -s "$DH_PATH" ]; then
 fi
 
 SELFSIGN_PATH="/etc/selfsign/live/$DOMAIN"
-if [ "$SSL_TYPE" = "selfsign" ] && [ ! -s "$SELFSIGN_PATH/privkey.pem" ]; then
+if [ "$SSL_TYPE" = "selfsign" ] && {
+  ! [ -s "$SELFSIGN_PATH/privkey.pem" ] ||
+  ! [ -s "$SELFSIGN_PATH/fullchain.pem" ];
+}; then
   mkdir -p "$SELFSIGN_PATH"
   openssl req -x509 -newkey rsa:4096 \
     -subj "/C=XX/ST=XXXX/L=XXXX/O=XXXX/CN=localhost" \