diff --git a/tools/perf/util/dso.c b/tools/perf/util/dso.c
index d5b6f7f5baffff4f8bb34fe59d014ec8c4c8d014..36ef45b2e89d53b674374fcf30325b49b0a34bfc 100644
--- a/tools/perf/util/dso.c
+++ b/tools/perf/util/dso.c
@@ -446,7 +446,7 @@ static int do_open(char *name)
 	char sbuf[STRERR_BUFSIZE];
 
 	do {
-		fd = open(name, O_RDONLY);
+		fd = open(name, O_RDONLY|O_CLOEXEC);
 		if (fd >= 0)
 			return fd;