diff --git a/youtube_dl/extractor/extractors.py b/youtube_dl/extractor/extractors.py
index 6e8fc3961..0a0a7f6e1 100644
--- a/youtube_dl/extractor/extractors.py
+++ b/youtube_dl/extractor/extractors.py
@@ -298,6 +298,7 @@ from .dplay import (
     DPlayIE,
     DiscoveryPlusIE,
     HGTVDeIE,
+    ScienceChannelIE
 )
 from .dreisat import DreiSatIE
 from .drbonanza import DRBonanzaIE