diff --git a/app/src/main/java/com/simplemobiletools/gallery/models/Directory.java b/app/src/main/java/com/simplemobiletools/gallery/models/Directory.java
deleted file mode 100644
index cf4f31efc..000000000
--- a/app/src/main/java/com/simplemobiletools/gallery/models/Directory.java
+++ /dev/null
@@ -1,82 +0,0 @@
-package com.simplemobiletools.gallery.models;
-
-import com.simplemobiletools.gallery.Constants;
-
-public class Directory implements Comparable {
-    private final String mPath;
-    private final String mThumbnail;
-    private final String mName;
-    private final long mTimestamp;
-    private int mMediaCnt;
-    private long mSize;
-    public static int mSorting;
-
-    public Directory(String path, String thumbnail, String name, int mediaCnt, long timestamp, long size) {
-        mPath = path;
-        mThumbnail = thumbnail;
-        mName = name;
-        mMediaCnt = mediaCnt;
-        mTimestamp = timestamp;
-        mSize = size;
-    }
-
-    public String getPath() {
-        return mPath;
-    }
-
-    public String getThumbnail() {
-        return mThumbnail;
-    }
-
-    public String getName() {
-        return mName;
-    }
-
-    public int getMediaCnt() {
-        return mMediaCnt;
-    }
-
-    public void setMediaCnt(int cnt) {
-        mMediaCnt = cnt;
-    }
-
-    public long getTimestamp() {
-        return mTimestamp;
-    }
-
-    public long getSize() {
-        return mSize;
-    }
-
-    public void addSize(long bytes) {
-        mSize += bytes;
-    }
-
-    @Override
-    public int compareTo(Object object) {
-        final Directory directory = (Directory) object;
-        int res;
-        if ((mSorting & Constants.SORT_BY_NAME) != 0) {
-            res = mPath.compareTo(directory.getPath());
-        } else if ((mSorting & Constants.SORT_BY_DATE) != 0) {
-            res = (mTimestamp > directory.getTimestamp()) ? 1 : -1;
-        } else {
-            res = (mSize > directory.getSize()) ? 1 : -1;
-        }
-
-        if ((mSorting & Constants.SORT_DESCENDING) != 0) {
-            res *= -1;
-        }
-        return res;
-    }
-
-    @Override
-    public String toString() {
-        return "Directory {" +
-                "path=" + getPath() +
-                ", thumbnail=" + getThumbnail() +
-                ", name=" + getName() +
-                ", timestamp=" + getTimestamp() +
-                ", mediaCnt=" + getMediaCnt() + "}";
-    }
-}
diff --git a/app/src/main/java/com/simplemobiletools/gallery/models/Directory.kt b/app/src/main/java/com/simplemobiletools/gallery/models/Directory.kt
new file mode 100644
index 000000000..258bde275
--- /dev/null
+++ b/app/src/main/java/com/simplemobiletools/gallery/models/Directory.kt
@@ -0,0 +1,33 @@
+package com.simplemobiletools.gallery.models
+
+import com.simplemobiletools.gallery.Constants
+
+class Directory(val path: String, val thumbnail: String, val name: String, var mediaCnt: Int, val timestamp: Long, var size: Long) : Comparable<Directory> {
+    fun addSize(bytes: Long) {
+        size += bytes
+    }
+
+    override fun compareTo(other: Directory): Int {
+        var res: Int
+        if (mSorting and Constants.SORT_BY_NAME != 0) {
+            res = path.compareTo(other.path)
+        } else if (mSorting and Constants.SORT_BY_DATE != 0) {
+            res = if (timestamp > other.timestamp) 1 else -1
+        } else {
+            res = if (size > other.size) 1 else -1
+        }
+
+        if (mSorting and Constants.SORT_DESCENDING != 0) {
+            res *= -1
+        }
+        return res
+    }
+
+    override fun toString(): String {
+        return "Directory {path=$path, thumbnail=$thumbnail, name=$name, timestamp=$timestamp, mediaCnt=$mediaCnt}"
+    }
+
+    companion object {
+        var mSorting: Int = 0
+    }
+}
diff --git a/app/src/main/kotlin/com/simplemobiletools/gallery/asynctasks/GetDirectoriesAsynctask.kt b/app/src/main/kotlin/com/simplemobiletools/gallery/asynctasks/GetDirectoriesAsynctask.kt
index aeaf3e447..eb3b8bf09 100644
--- a/app/src/main/kotlin/com/simplemobiletools/gallery/asynctasks/GetDirectoriesAsynctask.kt
+++ b/app/src/main/kotlin/com/simplemobiletools/gallery/asynctasks/GetDirectoriesAsynctask.kt
@@ -77,7 +77,7 @@ class GetDirectoriesAsynctask(val context: Context, val isPickVideo: Boolean, va
         val dirs = ArrayList(directories.values)
         filterDirectories(dirs)
         Directory.mSorting = mConfig.directorySorting
-        //Collections.sort<Directory>(dirs)
+        Collections.sort<Directory>(dirs)
 
         val invalids = invalidFiles.toTypedArray()
         MediaScannerConnection.scanFile(context, invalids, null, null)