diff --git a/src/RichTextEditor/RichTextEditor.jsx b/src/RichTextEditor/RichTextEditor.jsx
index 55730901..9b3a2844 100644
--- a/src/RichTextEditor/RichTextEditor.jsx
+++ b/src/RichTextEditor/RichTextEditor.jsx
@@ -144,7 +144,7 @@ const RichTextEditor = ({
         };
 
         if (options.allowedTags && !options.allowedTags.includes('span')) {
-          options.allowedTags.push(['span']);
+          options.allowedTags.push('span');
         }
       }