diff --git a/inc/lib/webm/ffmpeg.php b/inc/lib/webm/ffmpeg.php
index 6974b4a8..cc1cf675 100644
--- a/inc/lib/webm/ffmpeg.php
+++ b/inc/lib/webm/ffmpeg.php
@@ -111,11 +111,12 @@ function is_valid_webm(array $ffprobe_out) {
 			];
 		}
 	} elseif ($extension === 'mp4' || stristr($ffprobe_out['format']['format_name'], 'mp4')) {
-		$any_h264 = false;
+		$any_h26x = false;
 		for ($i = 0; $i < count($trackmap['videoat']); $i++) {
-			if ($ffprobe_out['streams'][$i]['codec_name'] == 'h264') {
+			$video_codec = $ffprobe_out['streams'][$i]['codec_name'];
+			if ($video_codec == 'h264' || $video_codec == 'h265') {
 				$video_idx = $i;
-				$any_h264 = true;
+				$any_h26x = true;
 				break;
 			}
 		}
@@ -131,12 +132,12 @@ function is_valid_webm(array $ffprobe_out) {
 			}
 		}
 
-		// If the video is not h264 or (there is audio but it's not aac).
-		if (!$any_h264 || ($audio_idx !== null && !$any_aac)) {
+		// If the video is not h264, h265 or there is audio but it's not aac.
+		if (!$any_h26x || ($audio_idx !== null && !$any_aac)) {
 			return [
 				'error' => [
 					'code' => 2,
-					'msg' => $config['error']['invalidwebm'] . ' [h264/aac check]'
+					'msg' => $config['error']['invalidwebm'] . ' [h264/h265/aac check]'
 				]
 			];
 		}