diff --git a/htdocs/core/lib/functions.lib.php b/htdocs/core/lib/functions.lib.php
index 52859d2ea81..2b67b680615 100644
--- a/htdocs/core/lib/functions.lib.php
+++ b/htdocs/core/lib/functions.lib.php
@@ -9894,6 +9894,21 @@ function complete_head_from_modules($conf, $langs, $object, &$head, &$h, $type,
 
 			$reg = array();
 			if ($mode == 'add' && !preg_match('/^\-/', $values[1])) {
+				$newtab = array();
+				$postab = $h;
+				// detect if position set in $values[1] ie : +(2)mytab@mymodule (first tab is 0, second is one, ...)
+				$str = $values[1];
+				$posstart = strpos($str, '(');
+				if ($posstart > 0) {
+					$posend = strpos($str, ')');
+					if ($posstart > 0) {
+						$res1 = substr($str, $posstart + 1, $posend - $posstart -1);
+						if (is_numeric($res1)) {
+							$postab = (int) $res1;
+							$values[1] = '+' . substr($str, $posend + 1);
+						}
+					}
+				}
 				if (count($values) == 6) {
 					// new declaration with permissions:
 					// $value='objecttype:+tabname1:Title1:langfile@mymodule:$user->rights->mymodule->read:/mymodule/mynewtab1.php?id=__ID__'
@@ -9943,9 +9958,9 @@ function complete_head_from_modules($conf, $langs, $object, &$head, &$h, $type,
 							}
 						}
 
-						$head[$h][0] = dol_buildpath(preg_replace('/__ID__/i', ((is_object($object) && !empty($object->id)) ? $object->id : ''), $values[5]), 1);
-						$head[$h][1] = $label;
-						$head[$h][2] = str_replace('+', '', $values[1]);
+						$newtab[0] = dol_buildpath(preg_replace('/__ID__/i', ((is_object($object) && !empty($object->id)) ? $object->id : ''), $values[5]), 1);
+						$newtab[1] = $label;
+						$newtab[2] = str_replace('+', '', $values[1]);
 						$h++;
 					}
 				} elseif (count($values) == 5) {       // case deprecated
@@ -9976,11 +9991,13 @@ function complete_head_from_modules($conf, $langs, $object, &$head, &$h, $type,
 						$label = $langs->trans($values[2]);
 					}
 
-					$head[$h][0] = dol_buildpath(preg_replace('/__ID__/i', ((is_object($object) && !empty($object->id)) ? $object->id : ''), $values[4]), 1);
-					$head[$h][1] = $label;
-					$head[$h][2] = str_replace('+', '', $values[1]);
+					$newtab[0] = dol_buildpath(preg_replace('/__ID__/i', ((is_object($object) && !empty($object->id)) ? $object->id : ''), $values[4]), 1);
+					$newtab[1] = $label;
+					$newtab[2] = str_replace('+', '', $values[1]);
 					$h++;
 				}
+				// set tab at its position
+				$head = array_merge(array_slice($head, 0, $postab), array($newtab), array_slice($head, $postab));
 			} elseif ($mode == 'remove' && preg_match('/^\-/', $values[1])) {
 				if ($values[0] != $type) {
 					continue;