diff --git a/man5/proc.5 b/man5/proc.5
index fda03ab08..7b88032f1 100644
--- a/man5/proc.5
+++ b/man5/proc.5
@@ -4067,6 +4067,8 @@ or whose binary does not have read permission enabled.
 .TP
 \fI1\ ("debug")\fP
 All processes dump core when possible.
+(Reasons why a process might nevertheless not dump core are described in
+.BR core (5).)
 The core dump is owned by the filesystem user ID of the dumping process
 and no security is applied.
 This is intended for system debugging situations only.