diff --git a/services/AmForms_FieldsService.php b/services/AmForms_FieldsService.php
index 4ffef3c..e3d734a 100644
--- a/services/AmForms_FieldsService.php
+++ b/services/AmForms_FieldsService.php
@@ -54,7 +54,7 @@ public function getProperFieldTypes($fieldTypes)
      */
     public function getSupportedFieldTypes()
     {
-        return array(
+        $supportedFields = array(
             'AmForms_Hidden',
             'Assets',
             'Checkboxes',
@@ -66,5 +66,25 @@ public function getSupportedFieldTypes()
             'RadioButtons',
             'AmForms_Email',
         );
+
+        return array_merge($supportedFields, $this->getCustomFieldTypes());
+    }
+
+    /**
+     * Get custom field types.
+     *
+     * @return array
+     */
+    public function getCustomFieldTypes()
+    {
+        $customFieldTypes = [];
+
+        foreach (craft()->plugins->call('amFormsCustomFields') as $customFieldTypes) {
+            foreach ($customFieldTypes as $customFieldType) {
+                $customFieldTypes[] = $customFieldType;
+            }
+        }
+
+        return $customFieldTypes;
     }
 }