diff --git a/doc/manual/src/glossary.md b/doc/manual/src/glossary.md
index d61cfc823..b30633833 100644
--- a/doc/manual/src/glossary.md
+++ b/doc/manual/src/glossary.md
@@ -74,8 +74,8 @@
 
   - [substituter]{#gloss-substituter}\
     A *substituter* is an additional store from which Nix will
-    copy store objects it doesn't have. Nix will not copy a store
-    path from a remote store unless one of the following is true:
+    copy store objects it doesn't have. Nix will copy a store
+    path from a remote store only if one of the following is true:
 
     - the store object is signed by one of the `trusted-public-keys`
     - the substituter is in the `trusted-substituters` list