diff --git a/pkgs/top-level/ruby-packages.nix b/pkgs/top-level/ruby-packages.nix
index 05a7be580b0e..6daba8a581cf 100644
--- a/pkgs/top-level/ruby-packages.nix
+++ b/pkgs/top-level/ruby-packages.nix
@@ -1548,6 +1548,17 @@
     };
     version = "0.4.0";
   };
+  jekyll-compose = {
+    dependencies = ["jekyll"];
+    groups = ["default"];
+    platforms = [];
+    source = {
+      remotes = ["https://rubygems.org"];
+      sha256 = "1ny8xps0mrmx2w0xxc9rwa15ch1wkxvdrzxiwnqramqwja566y04";
+      type = "gem";
+    };
+    version = "0.12.0";
+  };
   jekyll-default-layout = {
     dependencies = ["jekyll"];
     groups = ["default"];