diff --git a/docs/book/download.txt b/docs/book/download.txt
index 47dcbb1f..30fe8fee 100644
--- a/docs/book/download.txt
+++ b/docs/book/download.txt
@@ -162,6 +162,7 @@ A return statement may also be added; please consult the contents of https://git
 
 The files included in the waf file (https://github.com/waf-project/waf/blob/master/waf-light#L167[waf-light] and all the files under https://github.com/waf-project/waf/tree/master/waflib[waflib]) are published under a BSD license which is reproduced below:
 
+[source,shishell]
 ---------------
 Redistribution and use in source and binary forms, with or without
 modification, are permitted provided that the following conditions
diff --git a/docs/book/execution.txt b/docs/book/execution.txt
index 1c2c6705..f711c808 100644
--- a/docs/book/execution.txt
+++ b/docs/book/execution.txt
@@ -450,7 +450,7 @@ $ waf configure --foo=test
 The command context for options is a shortcut to access the optparse functionality. For more information on the optparse module, consult the http://docs.python.org/library/optparse.html[Python documentation]
 
 
-=== The _build_ commands
+=== Build-related commands
 
 ==== Building targets (the _build_ command)