diff --git a/main.cpp b/main.cpp
index c106af9..4657377 100644
--- a/main.cpp
+++ b/main.cpp
@@ -192,7 +192,7 @@
         if (de->d_type != DT_DIR && lvl > 0)
             continue;
 
-        fd = openat(dfd, de->d_name, O_RDONLY | O_DIRECTORY);
+        fd = openat(dfd, de->d_name, O_RDONLY | O_DIRECTORY | O_CLOEXEC);
         if(fd < 0)
             continue;