diff --git a/runtime/doc/usr_27.txt b/runtime/doc/usr_27.txt
index 589c2a0..4736844 100644
--- a/runtime/doc/usr_27.txt
+++ b/runtime/doc/usr_27.txt
@@ -83,7 +83,7 @@
 
 	Note:
 	If your search takes much longer than you expected, you can interrupt
-	it with CTRL-C on Unix and  CTRL-Break on MS-DOS and MS-Windows.
+	it with CTRL-C on Unix and CTRL-Break on MS-Windows.
 
 ==============================================================================
 *27.2*	Wrapping around the file end