diff --git a/man2/ptrace.2 b/man2/ptrace.2
index 4fc26110d..9b445d6c7 100644
--- a/man2/ptrace.2
+++ b/man2/ptrace.2
@@ -1032,7 +1032,7 @@ value: the tracer can cause a different signal to be injected.
 .LP
 Note that a suppressed signal still causes system calls to return
 prematurely.
-In this case system calls will be restarted: the tracer will
+In this case, system calls will be restarted: the tracer will
 observe the tracee to reexecute the interrupted system call (or
 .BR restart_syscall (2)
 system call for a few syscalls which use a different mechanism