diff --git a/js/projectile-data-lab-main.ts b/js/projectile-data-lab-main.ts
index 77f6a7e3..d869f290 100644
--- a/js/projectile-data-lab-main.ts
+++ b/js/projectile-data-lab-main.ts
@@ -37,7 +37,7 @@ simLauncher.launch( () => {
         {
 
           // Due to the layout considerations in the Preferences Dialog, it has 2 columns. Our entry for the left column
-          // is blank
+          // is blank. See https://github.com/phetsims/joist/issues/956
           createContent: () => new Node()
         },
         {