diff --git a/doc/ref/spec.md b/doc/ref/spec.md
index 228608c..72c6416 100644
--- a/doc/ref/spec.md
+++ b/doc/ref/spec.md
@@ -1354,7 +1354,7 @@
 That is, a referenced definition will not unify with a struct
 that would add a field anywhere within the definition that it does not
 already define or explicitly allow with a pattern constraint or `...`.
-[Embeddings](#Embedding) allow bypassing this check.
+[Embeddings](#embedding) allow bypassing this check.
 
 If referencing a definition would always result in an error, implementations
 may report this inconsistency at the point of its declaration.