diff --git a/doc/manual/src/glossary.md b/doc/manual/src/glossary.md
index b30633833..89a9b94a1 100644
--- a/doc/manual/src/glossary.md
+++ b/doc/manual/src/glossary.md
@@ -54,8 +54,9 @@
     derivations (files describing a build action).
 
   - [input-addressed store object]{#gloss-input-addressed-store-object}\
-    Store objects produced by building a
-    non-[content-addressed](#gloss-content-addressed-derivation)
+    A store object produced by building a
+    non-[content-addressed](#gloss-content-addressed-derivation),
+    non-[fixed-output](#gloss-fixed-output-derivation),
     derivation.
 
   - [output-addressed store object]{#gloss-output-addressed-store-object}\