diff --git a/windmill-worker/nsjail/run.python3.config.proto b/windmill-worker/nsjail/run.python3.config.proto
index 9f106c23..9da2d2a8 100644
--- a/windmill-worker/nsjail/run.python3.config.proto
+++ b/windmill-worker/nsjail/run.python3.config.proto
@@ -27,6 +27,13 @@ mount {
 }
 
 mount {
+	src: "/nix/store"
+	dst: "/nix/store"
+	is_bind: true
+}
+
+mount {
+    mandatory: false
     src: "/lib"
     dst: "/lib"
 	is_bind: true
@@ -34,6 +35,7 @@ mount {
 
 
 mount {
+    mandatory: false
     src: "/lib64"
     dst: "/lib64"
 	is_bind: true
@@ -41,6 +43,7 @@ mount {
 
 
 mount {
+    mandatory: false
     src: "/usr"
     dst: "/usr"
 	is_bind: true