diff --git a/README.md b/README.md
index b4a969fa..f010cbf7 100644
--- a/README.md
+++ b/README.md
@@ -235,7 +235,7 @@ Now SIXEL feature is supported by the following terminals.
 
   Works on each of X, WIN32 GDI, framebuffer, Android, Cocoa version.
 
-- XTerm (compiled with `--enable-sixel` option)
+- XTerm (compiled with `--enable-sixel-graphics` option)
 
   [http://invisible-island.net/xterm/](http://invisible-island.net/xterm/)
 
diff --git a/src/sixel.5 b/src/sixel.5
index 08db9519..3cdd6afc 100644
--- a/src/sixel.5
+++ b/src/sixel.5
@@ -19,7 +19,7 @@ tanasinn (Works with firefox)
 .br
 mlterm (Works on each of X, win32/cygwin and framebuffer version)
 .br
-XTerm (configured with --enable-sixel and lanuched with "-ti 340" option)
+XTerm (configured with --enable-sixel-graphics and lanuched with "-ti 340" option)
 .br
 yaft / yaftx (Works on framebuffer / X11 environment)
 .br