diff --git a/src/engine/jam.c b/src/engine/jam.c
index d98b099c..5bf08b98 100644
--- a/src/engine/jam.c
+++ b/src/engine/jam.c
@@ -249,9 +249,8 @@ int  main( int argc, char **argv, char **arg_environ )
         printf( "-lx     Limit actions to x number of seconds after which they are stopped.\n" );
         printf( "-n      Don't actually execute the updating actions.\n" );
         printf( "-ox     Write the updating actions to file x.\n" );
-	printf( "-px     x=0, pipes action stdout and stderr merged into action output.\n" );
-	printf( "-q      Quit quickly as soon as a target fails.\n" );
-	printf( "-r      Enable Dart results.\n" );
+        printf( "-px     x=0, pipes action stdout and stderr merged into action output.\n" );
+        printf( "-q      Quit quickly as soon as a target fails.\n" );
         printf( "-sx=y   Set variable x=y, overriding environment.\n" );
         printf( "-tx     Rebuild x, even if it is up-to-date.\n" );
         printf( "-v      Print the version of jam and exit.\n" );