diff --git a/src/tramp.c b/src/tramp.c
index 8ec0848..31180ef 100644
--- a/src/tramp.c
+++ b/src/tramp.c
@@ -236,7 +236,7 @@
   if (!found)
     return 0;
 
-  tramp_globals.fd = open (file, O_RDONLY);
+  tramp_globals.fd = open (file, O_RDONLY | O_CLOEXEC);
   if (tramp_globals.fd == -1)
     return 0;