diff --git a/man8/ld.so.8 b/man8/ld.so.8
index 47efd5c03..65446a60c 100644
--- a/man8/ld.so.8
+++ b/man8/ld.so.8
@@ -336,7 +336,9 @@ prints a help message about which categories can be specified in this
 environment variable.
 Since glibc 2.3.4,
 .B LD_DEBUG
-is ignored in secure-execution mode.
+is ignored in secure-execution mode, unless the file
+.IR /etc/suid\-debug
+exists (the content of the file is irrelevant).
 .TP
 .B LD_DEBUG_OUTPUT
 (glibc since 2.1)