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-rw-r--r--app/Census/CensusColumnBirthDay.php2
1 files changed, 1 insertions, 1 deletions
diff --git a/app/Census/CensusColumnBirthDay.php b/app/Census/CensusColumnBirthDay.php
index 7fc31ca4fe..47c9eaf6a6 100644
--- a/app/Census/CensusColumnBirthDay.php
+++ b/app/Census/CensusColumnBirthDay.php
@@ -31,7 +31,7 @@ class CensusColumnBirthDay extends AbstractCensusColumn implements CensusColumnI
*
* @return string
*/
- public function generate(Individual $individual, Individual $head = null)
+ public function generate(Individual $individual, Individual $head)
{
return $individual->getEstimatedBirthDate()->minimumDate()->format('%j');
}