diff --git a/app/assets/javascripts/02-editor.js b/app/assets/javascripts/02-editor.js
index ec4cf34b..a11362d2 100644
--- a/app/assets/javascripts/02-editor.js
+++ b/app/assets/javascripts/02-editor.js
@@ -416,6 +416,9 @@ function setupEditor (editorEl) {
 			range.collapse()
 		}
 	})
+	contentEl.addEventListener("paste", event => {
+		contentEl.querySelector("editor-aviso-word").style.display = "block"
+	})
 	document.addEventListener("selectionchange", event => {
 		cleanContent(contentEl)
 	})
diff --git a/app/assets/stylesheets/editor.scss b/app/assets/stylesheets/editor.scss
index 4b89cf1a..95c7a07a 100644
--- a/app/assets/stylesheets/editor.scss
+++ b/app/assets/stylesheets/editor.scss
@@ -35,6 +35,11 @@
 		background: white;
 	}
 
+	.editor-aviso-word {
+		color: red;
+		display: none;
+	}
+
 	.editor-primary-toolbar, .editor-auxiliary-toolbar {
 		display: block;
 		overflow-x: auto;