diff --git a/leveldb/src/main/java/org/iq80/leveldb/impl/Filename.java b/leveldb/src/main/java/org/iq80/leveldb/impl/Filename.java
index b12ec99a..4350f73b 100755
--- a/leveldb/src/main/java/org/iq80/leveldb/impl/Filename.java
+++ b/leveldb/src/main/java/org/iq80/leveldb/impl/Filename.java
@@ -57,6 +57,11 @@ public static String logFileName(long number)
      * Return the name of the sstable with the specified number.
      */
     public static String tableFileName(long number)
+    {
+        return makeFileName(number, "ldb");
+    }
+
+    public static String sstTableFileName(long number)
     {
         return makeFileName(number, "sst");
     }
@@ -149,6 +154,10 @@ else if (fileName.endsWith(".sst")) {
             long fileNumber = Long.parseLong(removeSuffix(fileName, ".sst"));
             return new FileInfo(FileType.TABLE, fileNumber);
         }
+        else if (fileName.endsWith(".ldb")) {
+            long fileNumber = Long.parseLong(removeSuffix(fileName, ".ldb"));
+            return new FileInfo(FileType.TABLE, fileNumber);
+        }
         else if (fileName.endsWith(".dbtmp")) {
             long fileNumber = Long.parseLong(removeSuffix(fileName, ".dbtmp"));
             return new FileInfo(FileType.TEMP, fileNumber);
diff --git a/leveldb/src/main/java/org/iq80/leveldb/impl/TableCache.java b/leveldb/src/main/java/org/iq80/leveldb/impl/TableCache.java
index ce2fb0e8..8363e434 100755
--- a/leveldb/src/main/java/org/iq80/leveldb/impl/TableCache.java
+++ b/leveldb/src/main/java/org/iq80/leveldb/impl/TableCache.java
@@ -121,6 +121,10 @@ private TableAndFile(File databaseDir, long fileNumber, UserComparator userCompa
         {
             String tableFileName = Filename.tableFileName(fileNumber);
             File tableFile = new File(databaseDir, tableFileName);
+            if (!tableFile.exists()) {
+                tableFileName = Filename.sstTableFileName(fileNumber);
+                tableFile = new File(databaseDir, tableFileName);
+            }
             FileInputStream fis = null;
             try {
                 fis = new FileInputStream(tableFile);
diff --git a/leveldb/src/test/java/org/iq80/leveldb/impl/DbImplTest.java b/leveldb/src/test/java/org/iq80/leveldb/impl/DbImplTest.java
index cc833cbe..3321be38 100644
--- a/leveldb/src/test/java/org/iq80/leveldb/impl/DbImplTest.java
+++ b/leveldb/src/test/java/org/iq80/leveldb/impl/DbImplTest.java
@@ -56,6 +56,7 @@
 import static org.iq80.leveldb.table.BlockHelper.beforeString;
 import static org.testng.Assert.assertEquals;
 import static org.testng.Assert.assertFalse;
+import static org.testng.Assert.assertNotNull;
 import static org.testng.Assert.assertNull;
 import static org.testng.Assert.assertTrue;
 import static org.testng.Assert.fail;
@@ -188,6 +189,35 @@ public void testGetFromVersions()
         assertEquals(db.get("foo"), "v1");
     }
 
+    @Test
+    public void testFileExtensionCompatible()
+            throws Exception
+    {
+        DbStringWrapper db = new DbStringWrapper(new Options(), databaseDir);
+        db.put("foo", "v1");
+        db.compactMemTable();
+        db.put("bar", "v1");
+        db.compactMemTable();
+        db.put("xvf", "v1");
+        db.compactMemTable();
+        ImmutableList<File> files = FileUtils.listFiles(databaseDir);
+        for (File file : files) {
+            Filename.FileInfo fileInfo = Filename.parseFileName(file);
+            assertNotNull(fileInfo);
+
+            if (fileInfo.getFileType().equals(Filename.FileType.TABLE)) {
+                assertTrue(file.getName().endsWith(".ldb"));
+                long fileNumber = fileInfo.getFileNumber();
+                File newFile = new File(databaseDir, Filename.sstTableFileName(fileNumber));
+                file.renameTo(newFile);
+            }
+        }
+        db.reopen();
+        assertEquals(db.get("foo"), "v1");
+        assertEquals(db.get("bar"), "v1");
+        assertEquals(db.get("xvf"), "v1");
+    }
+
     @Test
     public void testGetSnapshot()
             throws Exception