diff --git a/src/js/rulesAssistantOptions.js b/src/js/rulesAssistantOptions.js
index efcb5b411d6c9ed78e2120a1353619fe6b93633a..c16dd5d33808bf0d56e4d505652c24b3a48ef97b 100644
--- a/src/js/rulesAssistantOptions.js
+++ b/src/js/rulesAssistantOptions.js
@@ -1317,7 +1317,7 @@ globalThis.rulesAssistantOptions = (function() {
 			}
 
 			const explanation = document.createElement("div");
-			explanation.innerHTML = "Insert a valid <a target='_blank' class='link-external' href='https://www.w3schools.com/js/js_comparisons.asp'>JavaScript comparison and/or logical operation</a>.";
+			explanation.innerHTML = `Insert <kbd>(slave) =></kbd> followed by a valid <a target='_blank' class='link-external' href='https://www.w3schools.com/js/js_comparisons.asp'>JavaScript comparison and/or logical operation</a>.`;
 			elem.appendChild(explanation);
 			return elem;
 		}