diff --git a/htdocs/core/boxes/modules_boxes.php b/htdocs/core/boxes/modules_boxes.php
index 80589e4c4f3..fd179dec7b6 100644
--- a/htdocs/core/boxes/modules_boxes.php
+++ b/htdocs/core/boxes/modules_boxes.php
@@ -170,29 +170,6 @@ class ModeleBoxes // Can't be abtract as it is instantiated to build "empty" box
 		}
 	}
 
-
-	/**
-	 * Standard method to get content of a box
-	 *
-	 * @param   array   $head       Array with properties of box title
-	 * @param   array   $contents   Array with properties of box lines
-	 *
-	 * @return  string
-	 */
-	public function outputBox($head = null, $contents = null)
-	{
-		global $langs, $user, $conf;
-
-		// Trick to get result into a var from a function that makes print instead of return
-		// TODO Replace ob_start with param nooutput=1 into showBox
-		ob_start();
-		$result = $this->showBox($head, $contents);
-		$output = ob_get_contents();
-		ob_end_clean();
-
-		return $output;
-	}
-
 	/**
 	 * Standard method to show a box (usage by boxes not mandatory, a box can still use its own showBox function)
 	 *
diff --git a/htdocs/core/class/html.formother.class.php b/htdocs/core/class/html.formother.class.php
index dc55d0931f7..a6c458fc67b 100644
--- a/htdocs/core/class/html.formother.class.php
+++ b/htdocs/core/class/html.formother.class.php
@@ -1162,7 +1162,7 @@ class FormOther
                     //print 'box_order '.$boxactivated[$ii]->box_order.'<br>';
                     // Show box
                     $box->loadBox($box_max_lines);
-                    $boxlista .= $box->outputBox();
+                    $boxlista .= $box->showBox(null, null, 1);
                 }
             }
 
@@ -1171,7 +1171,7 @@ class FormOther
             	$emptybox->box_id = 'A';
             	$emptybox->info_box_head = array();
             	$emptybox->info_box_contents = array();
-            	$boxlista .= $emptybox->outputBox(array(), array());
+            	$boxlista .= $emptybox->showBox(array(), array(), 1);
             }
             $boxlista .= "<!-- End box left container -->\n";
 
@@ -1189,7 +1189,7 @@ class FormOther
                     //print 'box_order '.$boxactivated[$ii]->box_order.'<br>';
                     // Show box
                     $box->loadBox($box_max_lines);
-                    $boxlistb .= $box->outputBox();
+                    $boxlistb .= $box->showBox(null, null, 1);
                 }
             }
 
@@ -1198,7 +1198,7 @@ class FormOther
             	$emptybox->box_id = 'B';
             	$emptybox->info_box_head = array();
             	$emptybox->info_box_contents = array();
-            	$boxlistb .= $emptybox->outputBox(array(), array());
+            	$boxlistb .= $emptybox->showBox(array(), array(), 1);
             }
 
             $boxlistb .= "<!-- End box right container -->\n";