diff --git a/utralib/bao1x/.gitignore b/utralib/bao1x/.gitignore
new file mode 100644
index 000000000..e13bc9fa2
--- /dev/null
+++ b/utralib/bao1x/.gitignore
@@ -0,0 +1,2 @@
+# this is only present during simulations
+soc.svd
\ No newline at end of file