diff --git a/share/man/man9/fetch.9 b/share/man/man9/fetch.9
--- a/share/man/man9/fetch.9
+++ b/share/man/man9/fetch.9
@@ -34,7 +34,7 @@
 .\"
 .\" $FreeBSD$
 .\"
-.Dd January 23, 2020
+.Dd July 22, 2021
 .Dt FETCH 9
 .Os
 .Sh NAME
@@ -72,8 +72,10 @@
 .Nm
 functions are designed to copy small amounts of data from user-space
 of the current process.
-If read is successful, it is performed atomically.
-The data read must be naturally aligned.
+If the user address is naturally aligned, then the operation will be
+performed atomically.
+Otherwise it may fail or be performed non-atomically, depending on
+the platform.
 .Pp
 The
 .Nm
diff --git a/share/man/man9/store.9 b/share/man/man9/store.9
--- a/share/man/man9/store.9
+++ b/share/man/man9/store.9
@@ -34,7 +34,7 @@
 .\"
 .\" $FreeBSD$
 .\"
-.Dd April 17, 2018
+.Dd July 22, 2021
 .Dt STORE 9
 .Os
 .Sh NAME
@@ -60,8 +60,10 @@
 The
 .Nm
 functions are designed to copy small amounts of data to user-space.
-If write is successful, it is performed atomically.
-The data written must be naturally aligned.
+If the user address is naturally aligned, then the operation will be
+performed atomically.
+Otherwise it may fail or be performed non-atomically, depending on
+the platform.
 .Pp
 The
 .Nm