diff --git a/man2/dup.2 b/man2/dup.2
index ff2ed2efc..c7536b1a4 100644
--- a/man2/dup.2
+++ b/man2/dup.2
@@ -196,7 +196,10 @@ was equal to
 .TP
 .B EMFILE
 The process already has the maximum number of file
-descriptors open and tried to open a new one.
+descriptors open and tried to open a new one (see the discussion of
+.BR RLIMIT_NOFILE
+in
+.BR getrlimit (2)).
 .SH VERSIONS
 .BR dup3 ()
 was added to Linux in version 2.6.27;