diff --git a/tests/.gitignore b/tests/.gitignore
index 2b0c542fe1..a687e447f3 100644
--- a/tests/.gitignore
+++ b/tests/.gitignore
@@ -31,6 +31,7 @@
 /stdlib/bsearch
 /stdlib/rand
 /stdlib/strtol
+/stdlib/strtoul
 /stdlib/a64l
 /stdio/fwrite
 /stdio/all