diff --git a/changelog.d/13818.doc b/changelog.d/13818.doc
new file mode 100644
index 0000000000..16b31f5071
--- /dev/null
+++ b/changelog.d/13818.doc
@@ -0,0 +1 @@
+Update URL for the NixOS module for Synapse.
diff --git a/docs/setup/installation.md b/docs/setup/installation.md
index 96833effc6..dcd8f17c5e 100644
--- a/docs/setup/installation.md
+++ b/docs/setup/installation.md
@@ -181,7 +181,7 @@ doas pkg_add synapse
 #### NixOS
 
 Robin Lambertz has packaged Synapse for NixOS at:
-<https://github.com/NixOS/nixpkgs/blob/master/nixos/modules/services/misc/matrix-synapse.nix>
+<https://github.com/NixOS/nixpkgs/blob/master/nixos/modules/services/matrix/synapse.nix>
 
 
 ### Installing as a Python module from PyPI