diff --git a/MPChartLib/src/main/java/com/github/mikephil/charting/utils/EntryXComparator.java b/MPChartLib/src/main/java/com/github/mikephil/charting/utils/EntryXComparator.java
deleted file mode 100644
index 6fc5cd3b0..000000000
--- a/MPChartLib/src/main/java/com/github/mikephil/charting/utils/EntryXComparator.java
+++ /dev/null
@@ -1,18 +0,0 @@
-package com.github.mikephil.charting.utils;
-
-import com.github.mikephil.charting.data.Entry;
-
-import java.util.Comparator;
-
-/**
- * Comparator for comparing Entry-objects by their x-value.
- * Created by philipp on 17/06/15.
- */
-public class EntryXComparator implements Comparator<Entry> {
-    @Override
-    public int compare(Entry entry1, Entry entry2) {
-        float diff = entry1.getX() - entry2.getX();
-
-		return Float.compare(diff, 0f);
-    }
-}
diff --git a/MPChartLib/src/main/java/com/github/mikephil/charting/utils/EntryXComparator.kt b/MPChartLib/src/main/java/com/github/mikephil/charting/utils/EntryXComparator.kt
new file mode 100644
index 000000000..b717c26be
--- /dev/null
+++ b/MPChartLib/src/main/java/com/github/mikephil/charting/utils/EntryXComparator.kt
@@ -0,0 +1,16 @@
+package com.github.mikephil.charting.utils
+
+import com.github.mikephil.charting.data.Entry
+import kotlin.Comparator
+import kotlin.Int
+
+/**
+ * Comparator for comparing Entry-objects by their x-value.
+ */
+class EntryXComparator : Comparator<Entry> {
+    override fun compare(entry1: Entry, entry2: Entry): Int {
+        val diff = entry1.x - entry2.x
+
+        return diff.compareTo(0f)
+    }
+}