diff --git a/CHANGELOG.md b/CHANGELOG.md
index 7d9c8f76..0bf8fe09 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,5 +1,9 @@
 # CHANGELOG: Freeboard
 
+### v2.3.1
+
+- **Fixed**: Issue in autopilot display where +/- adjustment buttons were not sending data to Pypilot.
+
 ### v2.3.0
 
 - **Added**: Display a badge on menu icon when server has security enabled and client is not authenticated.
diff --git a/helper/pypilot.ts b/helper/pypilot.ts
index 3bddea7e..ae6d9f83 100644
--- a/helper/pypilot.ts
+++ b/helper/pypilot.ts
@@ -170,10 +170,10 @@ const initApiRoutes = () => {
 
       const v = req.body.value * (180 / Math.PI);
       let deg = apData.target + v;
-      if (deg > 359) {
-        deg = 359;
-      } else if (deg < -179) {
-        deg = -179;
+      if (deg > 360) {
+        deg = 360;
+      } else if (deg < -180) {
+        deg = -180;
       }
 
       const r = sendToPyPilot('target', deg);
@@ -282,7 +282,7 @@ const initPyPilotListeners = () => {
 
 // Send values to pypilot
 const sendToPyPilot = (command: string, value: string | number | boolean) => {
-  server.debug(`command: ${command} = ${value}`);
+  server.debug(`sendToPyPilot: ${command} = ${value}`);
   let mode = '';
 
   if (command === 'mode') {
@@ -295,8 +295,8 @@ const sendToPyPilot = (command: string, value: string | number | boolean) => {
       mode = 'ap.enabled';
     }
   } else if (command === 'target') {
-    if (typeof value === 'string') {
-      value = (180 / Math.PI) * parseFloat(value); // rad to deg
+    server.debug(`command: ${command}, value: ${value}, ${typeof value}`);
+    if (typeof value === 'number') {
       mode = 'ap.heading_command';
     }
   } else {
@@ -309,6 +309,7 @@ const sendToPyPilot = (command: string, value: string | number | boolean) => {
   }
 
   try {
+    server.debug(`out -> ${mode}=${JSON.stringify(value)}`);
     socket.emit('pypilot', mode + '=' + JSON.stringify(value));
     return {
       state: 'COMPLETED',
@@ -337,10 +338,13 @@ const handlePyPilotUpdateMsg = (data: any) => {
   }*/
 
   if (typeof data['ap.heading_command'] !== 'undefined') {
-    const heading =
+    const h =
       data['ap.heading_command'] === false ? null : data['ap.heading_command'];
-    if (heading !== apData.heading_command) {
-      apData.target = heading;
+    if (h !== apData.heading_command) {
+      apData.target = h;
+      server.debug(
+        `in -> deg: ${apData.target}, rad: ${(Math.PI / 180) * apData.target}`
+      );
       emitAPDelta('target' as Path, (Math.PI / 180) * apData.target);
     }
   }
diff --git a/package.json b/package.json
index f8cb3d56..f02581c6 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@signalk/freeboard-sk",
-  "version": "2.3.0",
+  "version": "2.3.1",
   "description": "Openlayers chart plotter implementation for Signal K",
   "keywords": [
     "signalk-webapp",
diff --git a/src/app/app.info.ts b/src/app/app.info.ts
index acb61f28..1f863424 100644
--- a/src/app/app.info.ts
+++ b/src/app/app.info.ts
@@ -268,7 +268,7 @@ export class AppInfo extends Info {
     this.name = 'Freeboard-SK';
     this.shortName = 'Freeboard';
     this.description = `Signal K Chart Plotter.`;
-    this.version = '2.3.0';
+    this.version = '2.3.1';
     this.url = 'https://github.com/signalk/freeboard-sk';
     this.logo = './assets/img/app_logo.png';
 
diff --git a/src/app/lib/components/autopilot.component.ts b/src/app/lib/components/autopilot.component.ts
index c553b808..c7ae7b69 100644
--- a/src/app/lib/components/autopilot.component.ts
+++ b/src/app/lib/components/autopilot.component.ts
@@ -244,7 +244,7 @@ export class AutopilotComponent {
   }
 
   formatTargetValue(value: number) {
-    if (value) {
+    if (typeof value === 'number') {
       return Convert.radiansToDegrees(value)?.toFixed(1);
     } else return '--';
   }