diff --git a/sources/SessionTracker/SessionHandler.php b/sources/SessionTracker/SessionHandler.php
index 4548eb82e..8096e80da 100644
--- a/sources/SessionTracker/SessionHandler.php
+++ b/sources/SessionTracker/SessionHandler.php
@@ -147,7 +147,7 @@ class SessionHandler extends \SessionHandler
 						$iCreationTime = $aJson['creation_time'];
 					}
 			    } else {
-					IssueLog::Debug(__METHOD__ . ': not a json due (session file corruption?)', null, [ 'sPreviousFileVersionContent' => $sPreviousFileVersionContent ]);
+					$aJson=[];
 				}
 			}
 
diff --git a/tests/php-unit-tests/unitary-tests/sources/SessionTracker/SessionHandlerTest.php b/tests/php-unit-tests/unitary-tests/sources/SessionTracker/SessionHandlerTest.php
index 5e51cb2a7..44a958c45 100644
--- a/tests/php-unit-tests/unitary-tests/sources/SessionTracker/SessionHandlerTest.php
+++ b/tests/php-unit-tests/unitary-tests/sources/SessionTracker/SessionHandlerTest.php
@@ -316,4 +316,13 @@ class SessionHandlerTest extends ItopDataTestCase
 
 		$this->assertEquals('gabuzomeu', $aJson['shadok'] ?? '', "Should report the current login mode in [shadok]: $sFirstContent");
 	}
+
+	public function testGenerateSessionContentWithPreviousNonArrayContentAndWithAdditionalDataProvidedBySessionHandlerExtension()
+	{
+		\utils::GetConfig()->Set('sessions_tracking.session_handler_extension', 'Combodo\iTop\Test\UnitTest\SessionTracker\BasicSessionHandlerExtension');
+		$this->CreateUserAndLogIn();
+		$oSessionHandler = new SessionHandler();
+		$sContent = $this->GenerateSessionContent($oSessionHandler, json_encode(null));
+		$this->assertNotNull($sContent, "Call to CompleteSessionData should NOT fail due to Argument #1 (\$aJson) must be of type array, null given");
+	}
 }
\ No newline at end of file