1diff --git a/windmill-worker/nsjail/run.csharp.config.proto b/windmill-worker/nsjail/run.csharp.config.proto
2index 389448eff..ee51c1bfb 100644
3--- a/windmill-worker/nsjail/run.csharp.config.proto
4+++ b/windmill-worker/nsjail/run.csharp.config.proto
5@@ -15,16 +15,24 @@ keep_caps: false
6 keep_env: true
7 mount_proc: true
8
9+mount {
10+ src: "/nix/store"
11+ dst: "/nix/store"
12+ is_bind: true
13+}
14+
15 mount {
16 src: "/bin"
17 dst: "/bin"
18 is_bind: true
19+ mandatory: false
20 }
21
22 mount {
23 src: "/lib"
24 dst: "/lib"
25 is_bind: true
26+ mandatory: false
27 }
28
29
30@@ -40,6 +48,7 @@ mount {
31 src: "/usr"
32 dst: "/usr"
33 is_bind: true
34+ mandatory: false
35 }
36
37 mount {