diff --git a/ecrire/inc_version.php3 b/ecrire/inc_version.php3
index be0b62525fa44abb6eb0c23bae5a8a45e9be01f9..a7b81259cdfb9727b8857c09eda44a547e3bb49e 100644
--- a/ecrire/inc_version.php3
+++ b/ecrire/inc_version.php3
@@ -601,8 +601,8 @@ class Link {
 	//
 
 	function delVar($name) {
-		unset($this->vars[$name]);
-		unset($this->arrays[$name]);
+		if($this->vars[$name]) unset($this->vars[$name]);
+		if($this->arrays[$name]) unset($this->arrays[$name]);
 	}
 
 	//