diff --git a/management/backup.py b/management/backup.py
index e15fbbb..93136bf 100755
--- a/management/backup.py
+++ b/management/backup.py
@@ -419,15 +419,22 @@ def list_target_files(config):
 		fix_boto() # must call prior to importing boto
 		import boto.s3
 		from boto.exception import BotoServerError
+		custom_region = False
 		for region in boto.s3.regions():
 			if region.endpoint == target.hostname:
 				break
 		else:
-			raise ValueError("Invalid S3 region/host.")
+			# If region is not found this is a custom region
+			custom_region = True
 
 		bucket = target.path[1:].split('/')[0]
 		path = '/'.join(target.path[1:].split('/')[1:]) + '/'
 
+		# Create a custom region with custom endpoint
+		if custom_region:
+			from boto.s3.connection import S3Connection
+			region = boto.s3.S3RegionInfo(name=bucket, endpoint=target.hostname, connection_cls=S3Connection)
+
 		# If no prefix is specified, set the path to '', otherwise boto won't list the files
 		if path == '/':
 			path = ''
diff --git a/management/templates/system-backup.html b/management/templates/system-backup.html
index be528f1..3860edb 100644
--- a/management/templates/system-backup.html
+++ b/management/templates/system-backup.html
@@ -77,15 +77,22 @@
     </div>
   </div>
   <div class="form-group backup-target-s3">
-    <label for="backup-target-s3-host" class="col-sm-2 control-label">S3 Region</label>
+    <label for="backup-target-s3-host-select" class="col-sm-2 control-label">S3 Region</label>
     <div class="col-sm-8">
-      <select class="form-control" rows="1" id="backup-target-s3-host">
+      <select class="form-control" rows="1" id="backup-target-s3-host-select">
         {% for name, host in backup_s3_hosts %}
           <option value="{{host}}">{{name}}</option>
         {% endfor %}
+        <option value="other">Other</option>
       </select>
     </div>
   </div>
+  <div class="form-group backup-target-s3">
+    <label for="backup-target-s3-host" class="col-sm-2 control-label">S3 Host / Endpoint</label>
+    <div class="col-sm-8">
+      <input type="text" placeholder="Endpoint" class="form-control" rows="1" id="backup-target-s3-host">
+    </div>
+  </div>
   <div class="form-group backup-target-s3">
     <label for="backup-target-s3-path" class="col-sm-2 control-label">S3 Path</label>
     <div class="col-sm-8">
@@ -139,6 +146,8 @@ function toggle_form() {
   var target_type = $("#backup-target-type").val();
   $(".backup-target-local, .backup-target-rsync, .backup-target-s3").hide();
   $(".backup-target-" + target_type).show();
+
+  init_inputs(target_type);
 }
 
 function nice_size(bytes) {
@@ -278,4 +287,20 @@ function set_custom_backup() {
     });
   return false;
 }
+
+function init_inputs(target_type) {
+  function set_host(host) {
+    if(host !== 'other') {
+      $("#backup-target-s3-host").val(host);
+    } else {
+      $("#backup-target-s3-host").val('');
+    }
+  }
+  if (target_type == "s3") {
+    $('#backup-target-s3-host-select').off('change').on('change', function() {
+      set_host($('#backup-target-s3-host-select').val());
+    });
+    set_host($('#backup-target-s3-host-select').val());
+  }
+}
 </script>