diff --git a/htdocs/core/modules/modProduct.class.php b/htdocs/core/modules/modProduct.class.php
index 05215f8aea8..b725ef878a3 100644
--- a/htdocs/core/modules/modProduct.class.php
+++ b/htdocs/core/modules/modProduct.class.php
@@ -67,7 +67,7 @@ class modProduct extends DolibarrModules
 		// Dependencies
 		$this->hidden = false;			// A condition to hide module
 		$this->depends = array();		// List of module class names as string that must be enabled if this module is enabled
-		$this->requiredby = array("modStock","modBarcode","modProductBatch");	// List of module ids to disable if this one is disabled
+		$this->requiredby = array("modStock","modBarcode","modProductBatch","modVariants");	// List of module ids to disable if this one is disabled
 		$this->conflictwith = array();	// List of module class names as string this module is in conflict with
 		$this->phpmin = array(5,4);		// Minimum version of PHP required by module