diff --git a/INSTALL b/INSTALL
index e7be1359535..75d691f2b6c 100644
--- a/INSTALL
+++ b/INSTALL
@@ -226,7 +226,7 @@ DETAILED BUILDING AND INSTALLATION:
 (This is for a Unix or Unix-like system.  For MS-DOS and Windows 3.X,
 see below; search for MSDOG.  For Windows 9X, Windows ME, Windows NT,
 Windows 2000, Windows XP/2003, and Windows Vista/2008, see the file
-nt/INSTALL.)
+nt/INSTALL.  For GNUStep and Mac OS X, see nextstep/INSTALL.)
 
 1) Make sure your system has enough swapping space allocated to handle
 a program whose pure code is 1.5 MB and whose data area is at