diff --git a/src/art/genAI/prompts/earsPromptPart.js b/src/art/genAI/prompts/earsPromptPart.js
index fe8069ea8b38947d0428aa4ce401aa5c121a93f1..c3bd4eac7eea21ea1da609b2ff36eab49d028b4a 100644
--- a/src/art/genAI/prompts/earsPromptPart.js
+++ b/src/art/genAI/prompts/earsPromptPart.js
@@ -15,6 +15,6 @@ App.Art.GenAI.EarsPromptPart = class EarsPromptPart extends App.Art.GenAI.Prompt
 	 * @override
 	 */
 	negative() {
-		return;
+		return undefined;
 	}
 };