diff --git a/src/project/Project.js b/src/project/Project.js
index 119ccdb7..d7be6c20 100644
--- a/src/project/Project.js
+++ b/src/project/Project.js
@@ -69,6 +69,7 @@ var Project = PaperScopeItem.extend(/** @lends Project# */{
 		// into the active project automatically. We might want to add proper
 		// project serialization later, but deserialization of a layers array
 		// will always work.
+		// Pass true for compact, so 'Project' does not get added as the class
 		return Base.serialize(this.layers, options, true, dictionary);
 	},