diff --git a/src/supervisor.adoc b/src/supervisor.adoc
index 7187dda3d..85a41ab9f 100644
--- a/src/supervisor.adoc
+++ b/src/supervisor.adoc
@@ -490,8 +490,10 @@ access a counter if the corresponding bits in `scounteren` and
 The `sscratch` CSR is an SXLEN-bit read/write register, dedicated
 for use by the supervisor. Typically, `sscratch` is used to hold a
 pointer to the hart-local supervisor context while the hart is executing
-user code. At the beginning of a trap handler, `sscratch` is swapped
-with a user register to provide an initial working register.
+user code.
+At the beginning of a trap handler, software normally uses a CSRRW
+instruction to swap `sscratch` with an integer register to obtain an
+initial working register.
 
 .Supervisor Scratch Register
 include::images/bytefield/sscratch.edn[]