diff --git a/tools/perf/builtin-record.c b/tools/perf/builtin-record.c
index dc3435e..711745f 100644
--- a/tools/perf/builtin-record.c
+++ b/tools/perf/builtin-record.c
@@ -193,7 +193,7 @@
 
 static void sig_atexit(void)
 {
-	if (child_pid != -1)
+	if (child_pid > 0)
 		kill(child_pid, SIGTERM);
 
 	if (signr == -1)