diff --git a/sftp.c b/sftp.c
index b66037f1..54538ff9 100644
--- a/sftp.c
+++ b/sftp.c
@@ -220,9 +220,12 @@ static const struct CMD cmds[] = {
 static void
 killchild(int signo)
 {
-	if (sshpid > 1) {
-		kill(sshpid, SIGTERM);
-		waitpid(sshpid, NULL, 0);
+	pid_t pid;
+
+	pid = sshpid;
+	if (pid > 1) {
+		kill(pid, SIGTERM);
+		(void)waitpid(pid, NULL, 0);
 	}
 
 	_exit(1);