diff --git a/build/jam/CommandLineArguments b/build/jam/CommandLineArguments
index 083184408d..a53874a78d 100644
--- a/build/jam/CommandLineArguments
+++ b/build/jam/CommandLineArguments
@@ -42,7 +42,7 @@ rule ProcessCommandLineArguments
 				Echo ;
 				Echo "Nightly build profiles (small set of packages used in"
                 	"nightly builds and default configuration):" ;
-				Echo "  night-raw        - A raw disk image." ;
+				Echo "  nightly-raw        - A raw disk image." ;
 				Echo "  nightly-anyboot  - A custom image for either CD or"
 					"disk." ;
 				Echo "  nightly-cd       - An ISO9660 CD image." ;