diff --git a/src/main/scala/org/scalajs/dom/raw/lib.scala b/src/main/scala/org/scalajs/dom/raw/lib.scala
index 805afd7e7..9ed842ed5 100644
--- a/src/main/scala/org/scalajs/dom/raw/lib.scala
+++ b/src/main/scala/org/scalajs/dom/raw/lib.scala
@@ -5076,14 +5076,14 @@ class TimeRanges extends js.Object {
    *
    * MDN
    */
-  def start(index: Int): Int = js.native
+  def start(index: Int): Double = js.native
 
   /**
    * Returns the time offset at which a specified time range ends.
    *
    * MDN
    */
-  def end(index: Int): Int = js.native
+  def end(index: Int): Double = js.native
 }