diff --git a/pkgs/applications/misc/gallery-dl/default.nix b/pkgs/applications/misc/gallery-dl/default.nix
index e7a7eb0465bf..20590552fc99 100644
--- a/pkgs/applications/misc/gallery-dl/default.nix
+++ b/pkgs/applications/misc/gallery-dl/default.nix
@@ -1,4 +1,4 @@
-{ lib, buildPythonApplication, fetchPypi, requests, pytestCheckHook }:
+{ lib, buildPythonApplication, fetchPypi, requests, youtube-dl, pytestCheckHook }:
 
 buildPythonApplication rec {
   pname = "gallery_dl";
@@ -9,7 +9,7 @@ buildPythonApplication rec {
     sha256 = "7fec9ac69582dbd9922666e6ece3142ae52dc9679a2c4a613f6ee94ad09e5f68";
   };
 
-  propagatedBuildInputs = [ requests ];
+  propagatedBuildInputs = [ requests youtube-dl ];
 
   checkInputs = [ pytestCheckHook ];
   pytestFlagsArray = [