diff --git a/src/interaction/universalRules.js b/src/interaction/universalRules.js
index 8cc36e2042f4db1c1dd8a6085f3ad3dbb67fdcbf..96e0f24a0ee525b9466587a40f27b54eefbda860 100644
--- a/src/interaction/universalRules.js
+++ b/src/interaction/universalRules.js
@@ -78,13 +78,13 @@ App.UI.universalRules = function() {
 		const options = new App.UI.OptionsGroup();
 
 		options.addOption("Slaves keep surnames", "surnamesForbidden")
-			.addValue("Yes", 1).on()
-			.addValue(`No going forward`, 0).off()
+			.addValue("Yes", 0).on()
+			.addValue(`No going forward`, 1).off()
 			.customButton(`No and strip all current surnames`, () => {
 				for (const slave of V.slaves) {
 					slave.slaveSurname = 0;
 				}
-				V.surnamesForbidden = 0;
+				V.surnamesForbidden = 1;
 			}, passage());
 
 		if (V.surnamesForbidden === 0) {