diff --git a/nixos/modules/services/web-apps/calibre-web.nix b/nixos/modules/services/web-apps/calibre-web.nix
index 508a1ece72c0..c28c9b456b4a 100644
--- a/nixos/modules/services/web-apps/calibre-web.nix
+++ b/nixos/modules/services/web-apps/calibre-web.nix
@@ -91,7 +91,7 @@ in
           '';
         };
 
-        enableKepubify = mkEnableOption "kebup conversion support";
+        enableKepubify = mkEnableOption "kepub conversion support";
 
         enableBookUploading = mkOption {
           type = types.bool;