diff --git a/app/Controllers/Patient.php b/app/Controllers/Patient.php
index d2a8fd8..e79d6dc 100644
--- a/app/Controllers/Patient.php
+++ b/app/Controllers/Patient.php
@@ -143,7 +143,7 @@ class Patient extends Controller {
                 "EthnicID"         => isset($input['EthnicID']) ? (int) $input['EthnicID'] : null,
                 "Citizenship"      => $input['Citizenship'] ?? null,
                 "DeathIndicator"   => isset($input['DeathIndicator']) ? (int) $input['DeathIndicator'] : null,
-                "DeathDateTime"    => $input['DeathDateTime'] ?? null,
+                'DeathDateTime'    => $input['DeathDateTime'] ?: null,
                 "CreateDate"       => date('Y-m-d H:i:s'),
                 "DelDate"          => null,
                 // Linkto