diff --git a/doc/manual/src/installation/prerequisites-source.md b/doc/manual/src/installation/prerequisites-source.md
index d4babf1ea..907d7f63f 100644
--- a/doc/manual/src/installation/prerequisites-source.md
+++ b/doc/manual/src/installation/prerequisites-source.md
@@ -32,11 +32,15 @@
     your distribution does not provide it, please install it from
     <http://www.sqlite.org/>.
 
-  - The [Boehm garbage collector](http://www.hboehm.info/gc/) to reduce
-    the evaluator’s memory consumption (optional). To enable it, install
+  - The [Boehm garbage collector (`bdw-gc`)](http://www.hboehm.info/gc/) to reduce
+    the evaluator’s memory consumption (optional).
+
+    To enable it, install
     `pkgconfig` and the Boehm garbage collector, and pass the flag
     `--enable-gc` to `configure`.
 
+    For `bdw-gc` <= 8.2.4 Nix needs a [small patch](https://github.com/NixOS/nix/blob/ac4d2e7b857acdfeac35ac8a592bdecee2d29838/boehmgc-traceable_allocator-public.diff) to be applied.
+
   - The `boost` library of version 1.66.0 or higher. It can be obtained
     from the official web site <https://www.boost.org/>.