diff --git a/third_party/gopkgs/github.com/golang/groupcache/default.nix b/third_party/gopkgs/github.com/golang/groupcache/default.nix
new file mode 100644
index 000000000..2dfa1241e
--- /dev/null
+++ b/third_party/gopkgs/github.com/golang/groupcache/default.nix
@@ -0,0 +1,9 @@
+{ pkgs, ... }:
+
+pkgs.buildGo.external {
+  path = "github.com/golang/groupcache";
+  src = builtins.fetchGit {
+    url = "https://github.com/golang/groupcache";
+    rev = "611e8accdfc92c4187d399e95ce826046d4c8d73";
+  };
+}