diff --git a/tests/.gitignore b/tests/.gitignore
index 620d8c7244..052d905de4 100644
--- a/tests/.gitignore
+++ b/tests/.gitignore
@@ -20,6 +20,7 @@
 /link
 /link.out
 /math
+/mem
 /setid
 /sleep
 /pipe