Added \label{} for logical addressing.
diff --git a/Doc/libfcntl.tex b/Doc/libfcntl.tex
index 8af4ee3..e3a4ae0 100644
--- a/Doc/libfcntl.tex
+++ b/Doc/libfcntl.tex
@@ -1,5 +1,6 @@
 % Manual text by Jaap Vermeulen
 \section{Built-in Module \sectcode{fcntl}}
+\label{module-fcntl}
 \bimodindex{fcntl}
 \indexii{UNIX@\UNIX{}}{file control}
 \indexii{UNIX@\UNIX{}}{I/O control}