diff --git a/lib/libc/sys/procctl.2 b/lib/libc/sys/procctl.2
--- a/lib/libc/sys/procctl.2
+++ b/lib/libc/sys/procctl.2
@@ -85,8 +85,8 @@
 images created
 by
 .Xr execve 2
-in the specified process or its descendants that did not changed
-the control nor modified it by other means.
+in the specified process or its descendants that do not either change
+the control or modify it by other means.
 The
 .Fa data
 parameter must point to the integer variable holding one of the following