diff --git a/doc/hooks/perl.section.md b/doc/hooks/perl.section.md
index 06942bd3c0e1..362a237d9b19 100644
--- a/doc/hooks/perl.section.md
+++ b/doc/hooks/perl.section.md
@@ -1,3 +1,4 @@
 # Perl {#setup-hook-perl}
 
-Adds the `lib/site_perl` subdirectory of each build input to the `PERL5LIB` environment variable. For instance, if `buildInputs` contains Perl, then the `lib/site_perl` subdirectory of each input is added to the `PERL5LIB` environment variable.
+Adds the `lib/perl5/site_perl` subdirectory of each build input to the `PERL5LIB` environment variable.
+The hook applies when `perl` is in `buildInputs`.