diff --git a/CHANGELOG.md b/CHANGELOG.md
index 566f8c1..66ea61b 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -44,6 +44,8 @@ This is the change log for the REUSE Specification.
 
 ### Changed
 
+- `REUSE.toml` files must not be ignored by VCS.
+
 ### Deprecated
 
 ### Removed
diff --git a/site/content/en/spec-3.3.md b/site/content/en/spec-3.3.md
index 3c9fb0b..31b8aed 100644
--- a/site/content/en/spec-3.3.md
+++ b/site/content/en/spec-3.3.md
@@ -230,6 +230,9 @@ A `REUSE.toml` file MAY be located in any directory, and can cover files that ar
 within its directory or deeper. You MAY have multiple `REUSE.toml` files in
 different directories.
 
+If the project uses a VCS, the `REUSE.toml` files MUST NOT be ignored by the
+VCS. Any `REUSE.toml` file ignored by VCS is ignored by REUSE.
+
 The `version` key (REQUIRED) MUST have an integer value representing the schema
 version of the file. This specification describes version 1 of `REUSE.toml`.