diff --git a/htdocs/admin/boxes.php b/htdocs/admin/boxes.php
index c9da0a20ab2..1d07a786044 100644
--- a/htdocs/admin/boxes.php
+++ b/htdocs/admin/boxes.php
@@ -286,7 +286,7 @@ if ($resql)
 			}
 			else
 			{
-				$sourcefile = DOL_EXTMODULE_ROOT."/".$module."/inc/boxes/".$boxname.".php";
+				$sourcefile = DOL_DOCUMENT_EXTMODULE."/".$module."/inc/boxes/".$boxname.".php";
 			}
 		}
 		else
@@ -397,7 +397,7 @@ if ($resql)
 			}
 			else
 			{
-				$sourcefile = DOL_EXTMODULE_ROOT."/".$module."/inc/boxes/".$boxname.".php";
+				$sourcefile = DOL_DOCUMENT_EXTMODULE."/".$module."/inc/boxes/".$boxname.".php";
 			}
 		}
 		else
diff --git a/htdocs/boxes.php b/htdocs/boxes.php
index c7aff81e61e..1f7ae1eac64 100644
--- a/htdocs/boxes.php
+++ b/htdocs/boxes.php
@@ -226,7 +226,7 @@ class InfoBox
 						}
 						else
 						{
-							$sourcefile = DOL_EXTMODULE_ROOT."/".$module."/inc/boxes/".$boxname.".php";
+							$sourcefile = DOL_DOCUMENT_EXTMODULE."/".$module."/inc/boxes/".$boxname.".php";
 						}
 					}
 					else
@@ -295,7 +295,7 @@ class InfoBox
 						}
 						else
 						{
-							$sourcefile = DOL_EXTMODULE_ROOT."/".$module."/inc/boxes/".$boxname.".php";
+							$sourcefile = DOL_DOCUMENT_EXTMODULE."/".$module."/inc/boxes/".$boxname.".php";
 						}
 					}
 					else
diff --git a/htdocs/master.inc.php b/htdocs/master.inc.php
index 6b2926dce5c..3a01ec385a4 100644
--- a/htdocs/master.inc.php
+++ b/htdocs/master.inc.php
@@ -105,7 +105,7 @@ define('DOL_DOCUMENT_ROOT', $dolibarr_main_document_root);			// Filesystem core
 define('DOL_DATA_ROOT', $dolibarr_main_data_root);					// Filesystem data (documents)
 define('DOL_CLASS_PATH', 'class/');									// Filesystem path to class dir
 define('DOL_CUSTOM_PATH', DOL_DOCUMENT_ROOT . '/custom');			// Filesystem path to custom dir
-define('DOL_EXTMODULE_ROOT', DOL_CUSTOM_PATH . '/modules');			// Filesystem path to external modules dir
+define('DOL_DOCUMENT_EXTMODULE', DOL_CUSTOM_PATH . '/modules');			// Filesystem path to external modules dir
 // If dolibarr_main_url_root = auto (Hidden feature for developers only), we try to forge it.
 if ($dolibarr_main_url_root == 'auto' && ! empty($_SERVER["SCRIPT_URL"]) && ! empty($_SERVER["SCRIPT_URI"]))
 {