diff --git a/files/src/main.js b/files/src/main.js
index 3fddbaba..8bf66730 100644
--- a/files/src/main.js
+++ b/files/src/main.js
@@ -289,6 +289,16 @@ function startup() {
 			set_checks("Engine", "WDL Calibration Elo", msg.val === "0" ? "Use default WDL" : msg.val);
 			break;
 
+		case "wdlevalobjectivity":
+			if (msg.val === "1") {
+				set_checks("Engine", "WDL Eval Objectivity", "Yes");
+			} else if (msg.val === "0") {
+				set_checks("Engine", "WDL Eval Objectivity", "No");
+			} else {
+				set_checks("Engine", "WDL Eval Objectivity", msg.val);
+			}
+			break;
+
 		case "scoretype":
 			set_checks("Engine", "Score Type", msg.val);
 			break;
@@ -3664,6 +3674,35 @@ function menu_build() {
 						},
 					]
 				},
+				{
+					label: "WDL Eval Objectivity",
+					submenu: [
+						{
+							label: "Yes",
+							type: "checkbox",
+							checked: false,
+							click: () => {
+								win.webContents.send("call", {
+									fn: "set_uci_option_permanent",
+									args: ["WDLEvalObjectivity", 1]
+								});
+								// Will receive an ack IPC which sets menu checks.
+							}
+						},
+						{
+							label: "No",
+							type: "checkbox",
+							checked: false,
+							click: () => {
+								win.webContents.send("call", {
+									fn: "set_uci_option_permanent",
+									args: ["WDLEvalObjectivity", 0]
+								});
+								// Will receive an ack IPC which sets menu checks.
+							}
+						}
+					]
+				},
 				{
 					label: "Score Type",
 					submenu: [
diff --git a/files/src/renderer/10_globals.js b/files/src/renderer/10_globals.js
index 793fc488..8d9c59a6 100644
--- a/files/src/renderer/10_globals.js
+++ b/files/src/renderer/10_globals.js
@@ -90,6 +90,7 @@ const standard_lc0_options = {		// These are only sent if known by the engine.
 	"ContemptMode": "white_side_analysis",
 	"Contempt": 0,
 	"WDLCalibrationElo": 0,
+	"WDLEvalObjectivity": 0,
 };
 
 const forced_ab_options = {};
diff --git a/files/src/renderer/90_engine.js b/files/src/renderer/90_engine.js
index e083ff61..693b67db 100644
--- a/files/src/renderer/90_engine.js
+++ b/files/src/renderer/90_engine.js
@@ -40,7 +40,7 @@ We are in one of these states (currently implicit in the logic):
 */
 
 const GUI_WANTS_TO_KNOW = ["Backend", "EvalFile", "WeightsFile", "SyzygyPath", "Threads", "Hash", "MultiPV",
-	"ContemptMode", "Contempt", "WDLCalibrationElo", "ScoreType", "Temperature", "TempDecayMoves"];
+	"ContemptMode", "Contempt", "WDLCalibrationElo", "WDLEvalObjectivity", "ScoreType", "Temperature", "TempDecayMoves"];
 
 let NoSearch = Object.freeze({
 	node: null,