diff --git a/boostmovehub.ts b/boostmovehub.ts
index 1e7d9be..49012ad 100644
--- a/boostmovehub.ts
+++ b/boostmovehub.ts
@@ -61,12 +61,16 @@ export class BoostMoveHub extends LPF2Hub {
         if (portObj.id !== "AB" && speed instanceof Array) {
             throw new Error(`Port ${portObj.id} can only accept a single speed`);
         }
+        let cancelEventTimer = true;
         if (typeof time === "boolean") {
             if (time === true) {
-                portObj.cancelEventTimer();
+                cancelEventTimer = false;
             }
             time = undefined;
         }
+        if (cancelEventTimer) {
+            portObj.cancelEventTimer();
+        }
         return new Promise((resolve, reject) => {
             if (time && typeof time === "number") {
 
@@ -190,6 +194,7 @@ export class BoostMoveHub extends LPF2Hub {
      */
     public setLightBrightness (port: string, brightness: number, time?: number) {
         const portObj = this._portLookup(port);
+        portObj.cancelEventTimer();
         return new Promise((resolve, reject) => {
             const data = Buffer.from([0x81, portObj.value, 0x11, 0x51, 0x00, brightness]);
             this._writeMessage(Consts.BLECharacteristics.LPF2_ALL, data);
diff --git a/puphub.ts b/puphub.ts
index 7ee7b25..7f15370 100644
--- a/puphub.ts
+++ b/puphub.ts
@@ -74,12 +74,16 @@ export class PUPHub extends LPF2Hub {
                 throw new Error(`Port ${portObj.id} requires both motors be of the same type`);
             }
         }
+        let cancelEventTimer = true;
         if (typeof time === "boolean") {
             if (time === true) {
-                portObj.cancelEventTimer();
+                cancelEventTimer = false;
             }
             time = undefined;
         }
+        if (cancelEventTimer) {
+            portObj.cancelEventTimer();
+        }
         return new Promise((resolve, reject) => {
             if (time && typeof time === "number") {
                 let data = null;
diff --git a/wedo2smarthub.ts b/wedo2smarthub.ts
index 19a3e11..1600426 100644
--- a/wedo2smarthub.ts
+++ b/wedo2smarthub.ts
@@ -126,12 +126,16 @@ export class WeDo2SmartHub extends Hub {
      */
     public setMotorSpeed (port: string, speed: number, time?: number | boolean) {
         const portObj = this._portLookup(port);
+        let cancelEventTimer = true;
         if (typeof time === "boolean") {
             if (time === true) {
-                portObj.cancelEventTimer();
+                cancelEventTimer = false;
             }
             time = undefined;
         }
+        if (cancelEventTimer) {
+            portObj.cancelEventTimer();
+        }
         return new Promise((resolve, reject) => {
             this._writeMessage(Consts.BLECharacteristics.WEDO2_MOTOR_VALUE_WRITE, Buffer.from([portObj.value, 0x01, 0x02, this._mapSpeed(speed)]));
             if (time && typeof time === "number") {
@@ -197,6 +201,7 @@ export class WeDo2SmartHub extends Hub {
      */
     public setLightBrightness (port: string, brightness: number, time?: number) {
         const portObj = this._portLookup(port);
+        portObj.cancelEventTimer();
         return new Promise((resolve, reject) => {
             const data = Buffer.from([portObj.value, 0x01, 0x02, brightness]);
             this._writeMessage(Consts.BLECharacteristics.WEDO2_MOTOR_VALUE_WRITE, data);