diff --git a/js/game/view/FractionChallengePanel.js b/js/game/view/FractionChallengePanel.js
index 8c3b199..091e62d 100644
--- a/js/game/view/FractionChallengePanel.js
+++ b/js/game/view/FractionChallengePanel.js
@@ -37,7 +37,7 @@ class FractionChallengePanel extends Panel {
    *
    * @param {ModelViewTransform2} modelViewTransform
    */
-  updateModelPositions(modelViewTransform ) {
+  updateModelPositions( modelViewTransform ) {
     this.box.updateModelPositions( modelViewTransform, this );
   }
 
diff --git a/js/lab/view/LabNumberPanel.js b/js/lab/view/LabNumberPanel.js
index e74aea5..b1d7ea3 100644
--- a/js/lab/view/LabNumberPanel.js
+++ b/js/lab/view/LabNumberPanel.js
@@ -36,7 +36,7 @@ class LabNumberPanel extends Panel {
    *
    * @param {ModelViewTransform2} modelViewTransform
    */
-  updateModelPositions(modelViewTransform ) {
+  updateModelPositions( modelViewTransform ) {
     this.box.updateModelPositions( modelViewTransform, this );
   }
 }
diff --git a/js/lab/view/LabShapePanel.js b/js/lab/view/LabShapePanel.js
index 783d8d5..ab270d3 100644
--- a/js/lab/view/LabShapePanel.js
+++ b/js/lab/view/LabShapePanel.js
@@ -110,7 +110,7 @@ class LabShapePanel extends Panel {
    *
    * @param {ModelViewTransform2} modelViewTransform
    */
-  updateModelPositions(modelViewTransform ) {
+  updateModelPositions( modelViewTransform ) {
     this.pieBox.updateModelPositions( modelViewTransform, this );
     this.barBox.updateModelPositions( modelViewTransform, this );
   }