diff --git a/packages/build-support/activate-shell b/packages/build-support/activate-shell
index 5ecd3e3..bd24464 100644
--- a/packages/build-support/activate-shell
+++ b/packages/build-support/activate-shell
@@ -1,2 +1,3 @@
 TOP="$(git rev-parse --show-toplevel)"
 use flake "${TOP}#$(basename $PWD)"
+eval "$shellHook"