diff --git a/src/fr/devinsy/sikevadb/filetree/FileTreeSikevaDB.java b/src/fr/devinsy/sikevadb/filetree/FileTreeSikevaDB.java
index 9f7388d..1276be2 100644
--- a/src/fr/devinsy/sikevadb/filetree/FileTreeSikevaDB.java
+++ b/src/fr/devinsy/sikevadb/filetree/FileTreeSikevaDB.java
@@ -27,9 +27,9 @@ import org.joda.time.format.ISODateTimeFormat;
 import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
 
+import fr.devinsy.sikevadb.core.Archiver;
 import fr.devinsy.sikevadb.core.Element;
 import fr.devinsy.sikevadb.core.Elements;
-import fr.devinsy.sikevadb.core.Archiver;
 import fr.devinsy.sikevadb.core.SikevaDB;
 import fr.devinsy.sikevadb.core.SikevaDBException;
 import fr.devinsy.util.strings.StringList;
@@ -57,8 +57,8 @@ public class FileTreeSikevaDB implements SikevaDB
 		CLOSED
 	};
 
-	private final Logger logger = LoggerFactory.getLogger(FileTreeSikevaDB.class);
 	private static final DateTimeFormatter ISOFormatter = ISODateTimeFormat.dateHourMinuteSecondMillis();
+	private final Logger logger = LoggerFactory.getLogger(FileTreeSikevaDB.class);
 
 	private Status status;
 	private String login;
@@ -413,15 +413,7 @@ public class FileTreeSikevaDB implements SikevaDB
 			}
 			else if (file.isDirectory())
 			{
-				File[] subFiles = file.listFiles();
-
-				for (File subFile : subFiles)
-				{
-					if (file.isFile())
-					{
-						result.add(subFile.getName());
-					}
-				}
+				result.add(file.getName());
 			}
 		}
 
diff --git a/test/fr/devinsy/sikevadb/filetree/TreeFileSikevaDBTest.java b/test/fr/devinsy/sikevadb/filetree/TreeFileSikevaDBTest.java
index 8ee7903..e7f2bf2 100644
--- a/test/fr/devinsy/sikevadb/filetree/TreeFileSikevaDBTest.java
+++ b/test/fr/devinsy/sikevadb/filetree/TreeFileSikevaDBTest.java
@@ -70,6 +70,7 @@ public class TreeFileSikevaDBTest
 		database.put("alpha01s", "bravo5", "qlskjfmlqj");
 
 		Assert.assertEquals(0, database.getSubkeys("none").size());
+		Assert.assertEquals(5, database.getSubkeys("alpha01s").size());
 
 		//
 		logger.debug("===== test done.");
@@ -101,10 +102,11 @@ public class TreeFileSikevaDBTest
 
 		StringList keys = database.getKeys();
 
-		Assert.assertEquals(5, keys.size());
+		Assert.assertEquals(6, keys.size());
 		Assert.assertTrue(keys.contains("alpha03"));
 		Assert.assertEquals(0, database.getSubkeys("alpha03s").size());
 		Assert.assertEquals(5, database.getSubkeys("alpha01s").size());
+		Assert.assertFalse(keys.contains("bravo4"));
 
 		//
 		logger.debug("===== test done.");