diff --git a/1992/kivinen/README.md b/1992/kivinen/README.md
index 12d614cb2..38d9c2a4d 100644
--- a/1992/kivinen/README.md
+++ b/1992/kivinen/README.md
@@ -78,8 +78,8 @@ NOTE: Some systems do not need (or have) `-lsocket -lresolv -lnsl`.
 Such systems should compile using `-lX11`.
 
 NOTE: The original winning source [kivinen.orig.c](kivinen.orig.c) assumed that
-exit returned a value which cause problems for some systems where exit returns
-void.  The file [kivinen.c](kivinen.c) avoids this problem.
+`exit(3)` returned a value which cause problems for some systems where `exit(3)` returns
+`void`.  The file [kivinen.c](kivinen.c) avoids this problem.
 
 
 ## Author's remarks:
diff --git a/thanks-for-help.md b/thanks-for-help.md
index ca28c30af..6894d0c46 100644
--- a/thanks-for-help.md
+++ b/thanks-for-help.md
@@ -1542,7 +1542,8 @@ operator so that it could be used in binary expressions.
 
 It was observed that on modern systems this goes much too quick. [Yusuke](#yusuke) created
 a patch that calls `usleep(3)` but [Cody](#cody) thought the value was too slow so he
-made it a macro in the Makefile `Z`, defaulting at 15000. This was made an [alt
+made it a macro in the Makefile `Z` (which can be redefined with `make
+SLEEP=...`), defaulting at 15000. This was made an [alt
 version](/1992/kivinen/kivinen.alt.c) and it is recommended one use the alt
 version first. See the README.md file to see how to reconfigure it.