diff --git a/phpstan-critical.neon b/phpstan-critical.neon
index 262d3012f..1dc516834 100644
--- a/phpstan-critical.neon
+++ b/phpstan-critical.neon
@@ -5,11 +5,6 @@ parameters:
             count: 1
             path: src/Bundle/ChillPersonBundle/Entity/AccompanyingPeriod.php
 
-        -
-            message: "#^Access to an undefined property Chill\\\\PersonBundle\\\\Entity\\\\Person\\:\\:\\$currentHouseholdParticipationAt\\.$#"
-            count: 3
-            path: src/Bundle/ChillPersonBundle/Entity/Person.php
-
         -
             message: "#^Access to an undefined property Chill\\\\PersonBundle\\\\Entity\\\\Household\\\\PersonHouseholdAddress\\:\\:\\$relation\\.$#"
             count: 1
diff --git a/src/Bundle/ChillPersonBundle/Entity/Person.php b/src/Bundle/ChillPersonBundle/Entity/Person.php
index ef522f068..7f2630a1e 100644
--- a/src/Bundle/ChillPersonBundle/Entity/Person.php
+++ b/src/Bundle/ChillPersonBundle/Entity/Person.php
@@ -240,6 +240,11 @@ class Person implements HasCenterInterface, TrackCreationInterface, TrackUpdateI
      */
     private array $currentHouseholdAt = [];
 
+    /**
+     * Cache for the computation of current household participation.
+     */
+    private array $currentHouseholdParticipationAt = [];
+
     /**
      * The current person address.
      *