diff --git a/js/common/view/ProjectileMotionScreenView.js b/js/common/view/ProjectileMotionScreenView.js
index 6ba1e22b..c844bf45 100644
--- a/js/common/view/ProjectileMotionScreenView.js
+++ b/js/common/view/ProjectileMotionScreenView.js
@@ -235,7 +235,9 @@ class ProjectileMotionScreenView extends ScreenView {
 
     const zoomOutButton = new ZoomButton( {
       baseColor: '#E7E8E9',
-      magnifyingGlassRadius: 8,
+      magnifyingGlassOptions:{
+        glassRadius:8
+      },
       xMargin: 3,
       yMargin: 3,
       in: false,
@@ -250,7 +252,9 @@ class ProjectileMotionScreenView extends ScreenView {
 
     const zoomInButton = new ZoomButton( {
       baseColor: '#E7E8E9',
-      magnifyingGlassRadius: 8,
+      magnifyingGlassOptions:{
+        glassRadius:8
+      },
       xMargin: 3,
       yMargin: 3,
       in: true,