diff --git a/lake-manifest.json b/lake-manifest.json
index 6b8261e982..1d7178f0f9 100644
--- a/lake-manifest.json
+++ b/lake-manifest.json
@@ -54,6 +54,15 @@
    "manifestFile": "lake-manifest.json",
    "inputRev": null,
    "inherited": false,
+   "configFile": "lakefile.lean"},
+  {"url": "https://github.com/leanprover/doc-gen4",
+   "type": "git",
+   "subDir": null,
+   "rev": "86d5c219a9ad7aa686c9e0e704af030e203c63a1",
+   "name": "«doc-gen4»",
+   "manifestFile": "lake-manifest.json",
+   "inputRev": "main",
+   "inherited": false,
    "configFile": "lakefile.lean"}],
  "name": "LeanCamCombi",
  "lakeDir": ".lake"}