diff --git a/man2/_exit.2 b/man2/_exit.2
index dd1c401e8..89b1e1c00 100644
--- a/man2/_exit.2
+++ b/man2/_exit.2
@@ -118,6 +118,9 @@ wrapper function invoked the kernel system call of the same name.
 Since glibc 2.3, the wrapper function invokes
 .BR exit_group (2),
 in order to terminate all of the threads in a process.
+(The raw
+.BR _exit ()
+system call terminates only the calling thread.)
 .SH SEE ALSO
 .BR execve (2),
 .BR exit_group (2),