diff --git a/src/nix/log.md b/src/nix/log.md
index 8ee2f1d19..1c76226a3 100644
--- a/src/nix/log.md
+++ b/src/nix/log.md
@@ -22,8 +22,8 @@ R""(
 
 # Description
 
-This command prints the log of a previous build of a derivation on
-standard output.
+This command prints the log of a previous build of the derivation
+*installable* on standard output.
 
 Nix looks for build logs in two places: