diff --git a/Doc/lib/libnis.tex b/Doc/lib/libnis.tex
index 8d6437b8b6f..0181b0637fc 100644
--- a/Doc/lib/libnis.tex
+++ b/Doc/lib/libnis.tex
@@ -1,5 +1,5 @@
 \section{\module{nis} ---
-         Interface to Sun's NIS (Yello Pages)}
+         Interface to Sun's NIS (Yellow Pages)}
 
 \declaremodule{extension}{nis}
   \platform{UNIX}