diff --git a/env.sh b/env.sh
index 43ab3d77f..84f4c4930 100755
--- a/env.sh
+++ b/env.sh
@@ -1,4 +1,4 @@
 #!/bin/bash
 
-exec vendor/nimbus-build-system/scripts/env.sh "$@"
+source vendor/nimbus-build-system/scripts/env.sh
 
diff --git a/vendor/nimbus-build-system b/vendor/nimbus-build-system
index bf10b1b72..9397da232 160000
--- a/vendor/nimbus-build-system
+++ b/vendor/nimbus-build-system
@@ -1 +1 @@
-Subproject commit bf10b1b72e2621f10483d0ce5b1947d55f8648cc
+Subproject commit 9397da232f1cc84839bdd29381cb2b787cb27eb7