diff --git a/master/api_usage_notes.md b/master/api_usage_notes.md
index 76656462..1880866d 100644
--- a/master/api_usage_notes.md
+++ b/master/api_usage_notes.md
@@ -37,12 +37,13 @@ constraints.  Altering the slave configuration is not possible anymore.
 ## Allowed Context
 
 The second distinction of cases is the calling context, which means how the
-application is run. Most of the functions of the [Application Interface](@ref
-ApplicationInterface) have to acquire locks or allocate memory, so they are
-potentially sleeping. They are tagged as `blocking`. Sleeping is not allowed
-in all contexts, for instance when using Xenomai/RTAI or a kernel timer. Only
-a very limited set of functions can be called from any context, marked as
-`rt_safe`. They do not allocate memory and will not block.
+application is run. Most of the functions of the
+[Application Interface](@ref ApplicationInterface) have to acquire locks or
+allocate memory, so they are potentially sleeping. They are tagged as
+`blocking`. Sleeping is not allowed in all contexts, for instance when using
+Xenomai/RTAI or a kernel timer. Only a very limited set of functions can be
+called from any context, marked as `rt_safe`. They do not allocate memory and
+will not block.
 
 | Tag        | Description                                                                                   |
 |------------|-----------------------------------------------------------------------------------------------|