diff --git a/src/CacheRepertoire.php b/src/CacheRepertoire.php
index df15cdb..d84c8ae 100644
--- a/src/CacheRepertoire.php
+++ b/src/CacheRepertoire.php
@@ -84,35 +84,38 @@ class CacheRepertoire {
 		// $dir/{champ}/{identifiant_fichier}/{nom du fichier.extension}
 		$directory = $this->dir;
 
-		// pas de répertoire… pas de fichier… simple comme bonjour :)
-		if (!is_dir($directory)) {
-			return [];
-		}
-
 		$liste = [];
 
-		$files = new \RecursiveIteratorIterator(
-			new \RecursiveDirectoryIterator($directory)
-		);
-
-		foreach ($files as $filename) {
-			if (
-				$filename->isDir()
-				or $filename->getFilename()[0] == '.' // .ok
-				or CacheFichiers::est_fichier_description($filename)
-			) {
-				continue;
-			}
+		try {
+			$files = new \RecursiveIteratorIterator(
+				new \RecursiveDirectoryIterator($directory)
+			);
+
+			$files->rewind();
+			while ($files->valid()) {
+				$filename = $files->current();
+				if (
+					$filename->isDir()
+					or $filename->getFilename()[0] == '.' // .ok
+					or CacheFichiers::est_fichier_description($filename)
+				) {
+					$files->next();
+					continue;
+				}
 
-			$chemin = $filename->getPathname();
-			if ($description = CacheFichiers::obtenir_description_fichier($chemin)) {
-				$champ = $description['bigup']['champ'];
+				$chemin = $filename->getPathname();
+				if ($description = CacheFichiers::obtenir_description_fichier($chemin)) {
+					$champ = $description['bigup']['champ'];
 
-				if (empty($liste[$champ])) {
-					$liste[$champ] = [];
+					if (empty($liste[$champ])) {
+						$liste[$champ] = [];
+					}
+					$liste[$champ][] = $description;
 				}
-				$liste[$champ][] = $description;
+				$files->next();
 			}
+		} catch (\UnexpectedValueException $e) {
+			return $liste;
 		}
 
 		return $liste;