diff --git a/app/javascript/editor/types/multimedia.ts b/app/javascript/editor/types/multimedia.ts
index dce00d5..16bf696 100644
--- a/app/javascript/editor/types/multimedia.ts
+++ b/app/javascript/editor/types/multimedia.ts
@@ -127,7 +127,7 @@ function createElementWithFile (url: string, type: string): HTMLElement {
 export function setupAuxiliaryToolbar (editor: Editor): void {
 	editor.toolbar.auxiliary.multimedia.uploadEl.addEventListener('click', event => {
 		const files = editor.toolbar.auxiliary.multimedia.fileEl.files
-		if (!files) throw new Error('no hay archivos para subir')
+		if (!files || !files.length) throw new Error('no hay archivos para subir')
 		const file = files[0]
 
 		const selectedEl = editor.contentEl