diff --git a/core/displayablegraph.class.inc.php b/core/displayablegraph.class.inc.php
index ac21946a3..7200f15ba 100644
--- a/core/displayablegraph.class.inc.php
+++ b/core/displayablegraph.class.inc.php
@@ -37,6 +37,7 @@ class DisplayableNode extends GraphNode
 {
 	public $x;
 	public $y;
+	public bool $bFiltered;
 
 	/**
 	 * Create a new node inside a graph