diff --git a/src/.gitignore b/src/.gitignore
index 8c14e6f4..24d832bc 100644
--- a/src/.gitignore
+++ b/src/.gitignore
@@ -37,3 +37,4 @@
 /list_subid_ranges
 /new_subid_range
 /free_subid_range
+/check_subid_range