diff --git a/include/assert.h b/include/assert.h
index 30da540429..e616914331 100644
--- a/include/assert.h
+++ b/include/assert.h
@@ -89,6 +89,10 @@
 #  define assert(f) ASSERT(f)
 #endif
 
+/* Definition required for C++11 compile timer assertion checking.  The
+ * static_assert macro simply expands to the _Static_assert keyword.
+ */
+
 #define static_assert _Static_assert
 
 /****************************************************************************