diff --git a/nextcloud.html b/nextcloud.html
index db60c34..905c8fe 100644
--- a/nextcloud.html
+++ b/nextcloud.html
@@ -3,7 +3,8 @@
         category: 'config',
         defaults: {
             cname: {value: '', required: false},
-            address: {value: 'https://your.server.com', required: true}
+            address: {value: 'https://your.server.com', required: true},
+            insecure: {value: '', required: false}
         },
 		credentials: {
         	user: {type:'text'},
@@ -27,6 +28,12 @@
         <label for="node-config-input-address"><i class="fa fa-server"></i> Server</label>
         <input type="text" id="node-config-input-address">
     </div>
+    <div class="form-row">
+        <label for="node-config-input-insecure"><i class="fa fa-server"></i> Security</label>
+        <input type="checkbox" value="1" id="node-config-input-insecure"
+        	style="display: inline-block; width: auto; vertical-align: top">
+        	<span style="width: 70%">Accept self signed certificates</span>
+    </div>
     <div class="form-row">
         <label for="node-config-input-user"><i class="fa fa-server"></i> Username</label>
         <input type="text" id="node-config-input-user">
@@ -379,4 +386,4 @@
 		<dt class="optional">timeout <span class="property-type">number</span></dt>
         <dd> Should be 0 in case of success</dd>
     </dl>
-</script>
\ No newline at end of file
+</script>
diff --git a/nextcloud.js b/nextcloud.js
index c738453..8e32616 100644
--- a/nextcloud.js
+++ b/nextcloud.js
@@ -4,10 +4,12 @@ module.exports = function (RED) {
   const fs = require('fs')
   const IcalExpander = require('ical-expander')
   const moment = require('moment')
+  const https = require('https')
 
   function NextcloudConfigNode (config) {
     RED.nodes.createNode(this, config)
     this.address = config.address
+    this.insecure = n.insecure
   }
   RED.nodes.registerType('nextcloud-credentials', NextcloudConfigNode, {
     credentials: {
@@ -197,7 +199,12 @@ module.exports = function (RED) {
       }
       directory = directory.replace('//', '/')
 
-      client.getDirectoryContents(directory)
+      // check option for self signed certs
+      const option = {}
+      if (node.server.insecure) {
+        option.agent = new https.Agent({ rejectUnauthorized: false })
+      }
+      client.getDirectoryContents(directory, option)
         .then(function (contents) {
           node.send({ 'payload': contents })
         }, function (error) {
@@ -226,8 +233,13 @@ module.exports = function (RED) {
         return
       }
       filename = filename.replace('//', '/')
-      node.warn(filename)
-      client.getFileContents(filename)
+
+      // check option for self signed certs
+      const option = {}
+      if (node.server.insecure) {
+        option.agent = new https.Agent({ rejectUnauthorized: false })
+      }
+      client.getFileContents(filename, option)
         .then(function (contents) {
           node.send({ 'payload': contents })
         }, function (error) {
@@ -264,7 +276,13 @@ module.exports = function (RED) {
       const webDavUri = node.server.address + '/remote.php/webdav/'
       const client = webdav(webDavUri, node.server.credentials.user, node.server.credentials.pass)
 
-      client.putFileContents(directory + name, file, { format: 'binary' })
+      // check option for self signed certs
+      const option = {}
+      if (node.server.insecure) {
+        option.agent = new https.Agent({ rejectUnauthorized: false })
+      }
+
+      client.putFileContents(directory + name, file, { format: 'binary' }, option)
         .then(function (contents) {
           console.log(contents)
           node.send({ 'payload': JSON.parse(contents) })