diff --git a/src/Line.ts b/src/Line.ts
index db32f1c..84bc017 100644
--- a/src/Line.ts
+++ b/src/Line.ts
@@ -21,7 +21,7 @@ export default class Line {
     start: PIXI.Point,
     startDirection: Direction,
     numStations: number,
-    color: tinycolorInstance
+    color: tinycolorInstance,
   ) {
     this.color = color;
     this.stations = [];
diff --git a/src/Train.ts b/src/Train.ts
index e89c335..9a48b24 100644
--- a/src/Train.ts
+++ b/src/Train.ts
@@ -21,7 +21,7 @@ export default class Train {
     passengers: number,
     origin: Station,
     destination: Station,
-    color: tinycolorInstance
+    color: tinycolorInstance,
   ) {
     this.location = location;
     this.speed = speed;