diff --git a/boostmovehub.ts b/boostmovehub.ts
index 2f4dbfd..2eb37eb 100644
--- a/boostmovehub.ts
+++ b/boostmovehub.ts
@@ -144,9 +144,11 @@ export class BoostMoveHub extends LPF2Hub {
      */
     public rampMotorSpeed (port: string, fromSpeed: number, toSpeed: number, time: number) {
         return new Promise((resolve, reject) => {
-            this._calculateRamp(fromSpeed, toSpeed, time).on("changeSpeed", (speed) => {
+            this._calculateRamp(fromSpeed, toSpeed, time)
+            .on("changeSpeed", (speed) => {
                 this.setMotorSpeed(port, speed);
-            }).on("finished", resolve);
+            })
+            .on("finished", resolve);
         });
     }
 
diff --git a/puphub.ts b/puphub.ts
index 47e3cb3..813402c 100644
--- a/puphub.ts
+++ b/puphub.ts
@@ -138,9 +138,11 @@ export class PUPHub extends LPF2Hub {
      */
     public rampMotorSpeed (port: string, fromSpeed: number, toSpeed: number, time: number) {
         return new Promise((resolve, reject) => {
-            this._calculateRamp(fromSpeed, toSpeed, time).on("changeSpeed", (speed) => {
+            this._calculateRamp(fromSpeed, toSpeed, time)
+            .on("changeSpeed", (speed) => {
                 this.setMotorSpeed(port, speed);
-            }).on("finished", resolve);
+            })
+            .on("finished", resolve);
         });
     }
 
diff --git a/wedo2smarthub.ts b/wedo2smarthub.ts
index 4a9ff9c..b77935e 100644
--- a/wedo2smarthub.ts
+++ b/wedo2smarthub.ts
@@ -147,9 +147,11 @@ export class WeDo2SmartHub extends Hub {
      */
     public rampMotorSpeed (port: string, fromSpeed: number, toSpeed: number, time: number) {
         return new Promise((resolve, reject) => {
-            this._calculateRamp(fromSpeed, toSpeed, time).on("changeSpeed", (speed) => {
+            this._calculateRamp(fromSpeed, toSpeed, time)
+            .on("changeSpeed", (speed) => {
                 this.setMotorSpeed(port, speed);
-            }).on("finished", resolve);
+            })
+            .on("finished", resolve);
         });
     }