diff --git a/htdocs/core/boxes/box_last_knowledgerecord.php b/htdocs/core/boxes/box_last_knowledgerecord.php
index 13635481341..2cb4818d6ac 100644
--- a/htdocs/core/boxes/box_last_knowledgerecord.php
+++ b/htdocs/core/boxes/box_last_knowledgerecord.php
@@ -171,7 +171,7 @@ class box_last_knowledgerecord extends ModeleBoxes
 					// Date creation
 					$this->info_box_contents[$i][$r] = array(
 						'td' => 'class="center nowraponall" title="'.dol_escape_htmltag($langs->trans("DateCreation").': '.dol_print_date($datec, 'dayhour', 'tzuserrel')).'"',
-						'text' => dol_print_date($objp->datec, 'dayhour', 'tzuserrel'),
+						'text' => dol_print_date($datec, 'dayhour', 'tzuserrel'),
 					);
 					$r++;
 
diff --git a/htdocs/core/boxes/box_last_modified_knowledgerecord.php b/htdocs/core/boxes/box_last_modified_knowledgerecord.php
index 01ee0771ee1..2c5319151fa 100644
--- a/htdocs/core/boxes/box_last_modified_knowledgerecord.php
+++ b/htdocs/core/boxes/box_last_modified_knowledgerecord.php
@@ -171,7 +171,7 @@ class box_last_modified_knowledgerecord extends ModeleBoxes
 					// Date creation
 					$this->info_box_contents[$i][$r] = array(
 						'td' => 'class="center nowraponall" title="'.dol_escape_htmltag($langs->trans("DateCreation").': '.dol_print_date($datec, 'dayhour', 'tzuserrel')).'"',
-						'text' => dol_print_date($objp->datec, 'dayhour', 'tzuserrel'),
+						'text' => dol_print_date($datec, 'dayhour', 'tzuserrel'),
 					);
 					$r++;