diff --git a/make-ffmpeg-fade.py b/make-ffmpeg-fade.py
index f4e88a3..7339a9d 100755
--- a/make-ffmpeg-fade.py
+++ b/make-ffmpeg-fade.py
@@ -5,6 +5,7 @@ import os
 import sys
 import subprocess
 import renderlib
+import schedulelib
 import argparse
 import shlex
 from PIL import ImageFont