diff --git a/README.md b/README.md
index bea73b9..29e3a46 100644
--- a/README.md
+++ b/README.md
@@ -178,6 +178,7 @@ Below is the complete list of parameters that can be set using environment varia
 - **JWT_SECRET**: Defines the secret key to validate the JSON Web Token in the request to the ONLYOFFICE Document Server. Defaults to `secret`.
 - **JWT_HEADER**: Defines the http header that will be used to send the JSON Web Token. Defaults to `Authorization`.
 - **JWT_IN_BODY**: Specifies the enabling the token validation in the request body to the ONLYOFFICE Document Server. Defaults to `false`.
+- **REJECT_UNAUTHORIZED_STORAGE**: Set to `true`if using selfsigned certificates for your storage server e.g. Nextcloud. Defaults to `false`
 
 ## Installing ONLYOFFICE Document Server integrated with Community and Mail Servers
 
diff --git a/run-document-server.sh b/run-document-server.sh
index 3f9d09d..d61be11 100755
--- a/run-document-server.sh
+++ b/run-document-server.sh
@@ -21,6 +21,7 @@ SSL_KEY_PATH=${SSL_KEY_PATH:-${SSL_CERTIFICATES_DIR}/onlyoffice.key}
 CA_CERTIFICATES_PATH=${CA_CERTIFICATES_PATH:-${SSL_CERTIFICATES_DIR}/ca-certificates.pem}
 SSL_DHPARAM_PATH=${SSL_DHPARAM_PATH:-${SSL_CERTIFICATES_DIR}/dhparam.pem}
 SSL_VERIFY_CLIENT=${SSL_VERIFY_CLIENT:-off}
+REJECT_UNAUTHORIZED_STORAGE=${REJECT_UNAUTHORIZED_STORAGE:-false}
 ONLYOFFICE_HTTPS_HSTS_ENABLED=${ONLYOFFICE_HTTPS_HSTS_ENABLED:-true}
 ONLYOFFICE_HTTPS_HSTS_MAXAGE=${ONLYOFFICE_HTTPS_HSTS_MAXAGE:-31536000}
 SYSCONF_TEMPLATES_DIR="/app/ds/setup/config"
@@ -350,6 +351,11 @@ update_nginx_settings(){
     else
       sed '/max-age=/d' -i ${NGINX_ONLYOFFICE_CONF}
     fi
+
+    if [ "${REJECT_UNAUTHORIZED_STORAGE}" == "true" ]; then
+      ${JSON} -I -e "if(this.services.CoAuthoring.requestDefaults===undefined)this.services.CoAuthoring.requestDefaults={}"
+      ${JSON} -I -e "if(this.services.CoAuthoring.requestDefaults.rejectUnauthorized===undefined)this.services.CoAuthoring.requestDefaults.rejectUnauthorized=false"
+    fi
   else
     ln -sf ${NGINX_ONLYOFFICE_PATH}/ds.conf.tmpl ${NGINX_ONLYOFFICE_CONF}
   fi