diff --git a/Tusker/Views/Attachments/GifvController.swift b/Tusker/Views/Attachments/GifvController.swift
index 033b4ee2..971e11b7 100644
--- a/Tusker/Views/Attachments/GifvController.swift
+++ b/Tusker/Views/Attachments/GifvController.swift
@@ -29,6 +29,7 @@ class GifvController {
         self.isGrayscale = Preferences.shared.grayscaleImages
         
         player.isMuted = true
+        player.preventsDisplaySleepDuringVideoPlayback = false
         
         NotificationCenter.default.addObserver(self, selector: #selector(restartItem), name: .AVPlayerItemDidPlayToEndTime, object: item)
         NotificationCenter.default.addObserver(self, selector: #selector(preferencesChanged), name: .preferencesChanged, object: nil)