diff --git a/pkgs/development/python-modules/comicon/default.nix b/pkgs/development/python-modules/comicon/default.nix
index 068452ae4ef5..7177c27f8854 100644
--- a/pkgs/development/python-modules/comicon/default.nix
+++ b/pkgs/development/python-modules/comicon/default.nix
@@ -38,6 +38,7 @@ buildPythonPackage rec {
   ];
 
   pythonRelaxDeps = [
+    "ebooklib"
     "lxml"
     "pillow"
     "pypdf"