diff --git a/man8/ld.so.8 b/man8/ld.so.8
index 82f8ede3e..75e74e1e4 100644
--- a/man8/ld.so.8
+++ b/man8/ld.so.8
@@ -426,7 +426,9 @@ is always used.
 .TP
 .B LD_SHOW_AUXV
 (glibc since 2.1)
-Show auxiliary array passed up from the kernel.
+If this environment variable is defined (with any value),
+show the auxiliary array passed up from the kernel (see also
+.BR getauxval (3)).
 Since glibc 2.3.5,
 .B LD_SHOW_AUXV
 is ignored in secure-execution mode.