diff --git a/php/auth/login.php b/php/auth/login.php
index 9ef51e6..dce4c92 100644
--- a/php/auth/login.php
+++ b/php/auth/login.php
@@ -35,9 +35,9 @@
 ?>
 	<form method="POST">
 		<label for="login">Login</label>
-		<input type="text" id="login" name="login" placeholder="Votre identifiant" required value="<?php if($error) echo $_POST['login'] ?>" />
+		<input type="text" id="login" name="login" placeholder="Votre identifiant" required value="<?php if(isset($error)) echo $_POST['login'] ?>" />
 		<label for="passwd">Mot de passe</label>
-		<input type="passwd" id="passwd" name="passwd" placeholder="Votre mot de passe" minlength="6" required value="<?php if($error) echo $_POST['passwd'] ?>" />
+		<input type="passwd" id="passwd" name="passwd" placeholder="Votre mot de passe" minlength="6" required value="<?php if(isset($error)) echo $_POST['passwd'] ?>" />
 		<input type="hidden" name="auth" value="true" />
 		<input type="submit" value="valider">
 	</form>
diff --git a/php/auth/register.php b/php/auth/register.php
index 654870b..2a0f098 100644
--- a/php/auth/register.php
+++ b/php/auth/register.php
@@ -22,9 +22,9 @@
 ?>
 	<form method="POST">
 		<label for="mail">mail</label>
-		<input type="email" id="mail" name="mail" placeholder="Votre identifiant" required value="<?php if($error) echo $_POST['mail'] ?>"/>
+		<input type="email" id="mail" name="mail" placeholder="Votre identifiant" required value="<?php if(isset($error)) echo $_POST['mail'] ?>"/>
 		<label for="passwd">Mot de passe</label>
-		<input type="passwd" id="passwd" name="passwd" placeholder="Votre mot de passe" minlength="6" required value="<?php if($error) echo $_POST['passwd'] ?>" />
+		<input type="passwd" id="passwd" name="passwd" placeholder="Votre mot de passe" minlength="6" required value="<?php if(isset($error)) echo $_POST['passwd'] ?>" />
         <label for="conf_passwd">Confirmer votre mot de passe</label>
 		<input type="passwd" id="conf_passwd" name="conf_passwd" placeholder="Confirmation du mot de passe" minlength="6" required />
         <input type="hidden" name="register" value="true" />