diff --git a/src/supervisor.adoc b/src/supervisor.adoc
index 15a776826..0bbd78344 100644
--- a/src/supervisor.adoc
+++ b/src/supervisor.adoc
@@ -103,7 +103,7 @@ destination register.
 If UXLEN latexmath:[$<$] SXLEN, user-mode instruction-fetch addresses
 and load and store effective addresses are taken modulo
 latexmath:[$2^{\text{UXLEN}}$]. For example, when UXLEN=32 and SXLEN=64,
-user-mode memory accesses reference the lowest of the address space.
+user-mode memory accesses reference the lowest 4 GiB of the address space.
 
 [[sum]]
 ===== Memory Privilege in `sstatus` Register