diff --git a/.gitignore b/.gitignore
index 7397aeb..ef33035 100644
--- a/.gitignore
+++ b/.gitignore
@@ -3,3 +3,4 @@ cache/
 tests/
 minelife.html
 vendors/keygen/__pycache__
+erreurs/
\ No newline at end of file
diff --git a/lib/Messenger.class.php b/lib/Messenger.class.php
index 6ea18eb..1e75268 100644
--- a/lib/Messenger.class.php
+++ b/lib/Messenger.class.php
@@ -81,7 +81,16 @@ class Messenger {
 
 		if (!isset($users[$penpalPubkey])) {
 
-			$this->users[$penpalPubkey] = $this->gchange->getUser($penpalPubkey);
+			try {
+
+				$user = $this->gchange->getUser($penpalPubkey);
+
+				$this->users[$penpalPubkey] = $user;
+			
+			} catch (Exception $e) {
+
+				$this->users[$penpalPubkey] = GchangeUser::constructVoidUser($penpalPubkey);
+			}
 		}
 	}
 	public function getConversation ($penpalGchangeId) {
diff --git a/messenger.php b/messenger.php
index b549dcb..857d5c8 100644
--- a/messenger.php
+++ b/messenger.php
@@ -42,7 +42,14 @@ try {
 // echo '<pre>'; var_dump($msgOut); echo '</pre>';
 // die();
 
-$messenger->addMessages($msgIn, $msgOut);
+try {
+
+	$messenger->addMessages($msgIn, $msgOut);
+
+} catch (Exception $e) {
+
+	// L'utilisateur {...} n'a été trouvé nulle part.
+}
 
 // echo '<pre>'; var_dump($messenger->getConversations()); echo '</pre>';