diff --git a/boosthub.js b/boosthub.js
index 89116de..d021c8a 100644
--- a/boosthub.js
+++ b/boosthub.js
@@ -284,7 +284,7 @@ class BoostHub extends Hub {
                         distance += 1 / partial;
                     }
                     
-                    this.emit("distance", port.id, Math.floor(distance * 25.4));
+                    this.emit("distance", port.id, Math.floor(distance * 25.4) - 20);
                     break;
                 }
                 case Consts.Devices.WEDO2_TILT:
diff --git a/test.js b/test.js
index 8c693d8..1efbfa9 100644
--- a/test.js
+++ b/test.js
@@ -18,7 +18,7 @@ lpf2.on("discover", (hub) => {
 
             moveHub.on("distance", (port, distance) => {
                 console.log(`Distance ${distance} received on port ${port}`);
-                if (distance < 80) {
+                if (distance < 100) {
                     moveHub.setMotorSpeed("D", 40);
                 } else {
                     moveHub.setMotorSpeed("D", 0);
@@ -31,7 +31,7 @@ lpf2.on("discover", (hub) => {
 
             wedoHub.on("distance", (port, distance) => {
                 console.log(`Distance ${distance} received on port ${port}`);
-                if (distance < 80) {
+                if (distance < 100) {
                     wedoHub.setMotorSpeed("B", 40);
                 } else {
                     wedoHub.setMotorSpeed("B", 0);