diff --git a/lib/transmuxer/h265.js b/lib/transmuxer/h265.js
index ccff3e03ab..d89b462928 100644
--- a/lib/transmuxer/h265.js
+++ b/lib/transmuxer/h265.js
@@ -359,10 +359,12 @@ shaka.transmuxer.H265 = class {
       gb.readBoolean(); // frame_field_info_present_flag
       defaultDisplayWindowFlag = gb.readBoolean();
       if (defaultDisplayWindowFlag) {
-        leftOffset += gb.readUnsignedExpGolomb();
-        rightOffset += gb.readUnsignedExpGolomb();
-        topOffset += gb.readUnsignedExpGolomb();
-        bottomOffset += gb.readUnsignedExpGolomb();
+        // We ignore these 4 offsets since they are not necessary for
+        // calculating the width and height.
+        gb.skipExpGolomb();
+        gb.skipExpGolomb();
+        gb.skipExpGolomb();
+        gb.skipExpGolomb();
       }
       const vuiTimingInfoPresentFlag = gb.readBoolean();
       if (vuiTimingInfoPresentFlag) {