diff --git a/lib/libc/stdlib/atof.3 b/lib/libc/stdlib/atof.3
index 6ae984639a2..10fcf491ab3 100644
--- a/lib/libc/stdlib/atof.3
+++ b/lib/libc/stdlib/atof.3
@@ -80,7 +80,9 @@ and should not be used in new code.
 .Sh ERRORS
 The function
 .Fn atof
-need not affect the value of errno on an error.
+need not affect the value of
+.Va errno
+on an error.
 .Sh SEE ALSO
 .Xr atoi 3 ,
 .Xr atol 3 ,
diff --git a/lib/libc/stdlib/atoi.3 b/lib/libc/stdlib/atoi.3
index 360faf77922..19269a5ca15 100644
--- a/lib/libc/stdlib/atoi.3
+++ b/lib/libc/stdlib/atoi.3
@@ -76,7 +76,9 @@ and should not be used in new code.
 .Sh ERRORS
 The function
 .Fn atoi
-need not affect the value of errno on an error.
+need not affect the value of
+.Va errno
+on an error.
 .Sh SEE ALSO
 .Xr atof 3 ,
 .Xr atol 3 ,
diff --git a/lib/libc/stdlib/atol.3 b/lib/libc/stdlib/atol.3
index 0dceeecfe1d..10b8cf7081e 100644
--- a/lib/libc/stdlib/atol.3
+++ b/lib/libc/stdlib/atol.3
@@ -88,7 +88,9 @@ The functions
 and
 .Fn atoll
 need not
-affect the value of errno on an error.
+affect the value of
+.Va errno
+on an error.
 .Sh SEE ALSO
 .Xr atof 3 ,
 .Xr atoi 3 ,