diff --git a/src/engine/runtime.js b/src/engine/runtime.js
index f088992e7..369c88f9a 100644
--- a/src/engine/runtime.js
+++ b/src/engine/runtime.js
@@ -1383,6 +1383,7 @@ class Runtime extends EventEmitter {
                         target.isStage ? TargetType.STAGE : TargetType.SPRITE
                     );
                 }
+                // If the block info's `hideFromPalette` is true, then filter out this block
                 return blockFilterIncludesTarget && !block.info.hideFromPalette;
             });