diff --git a/ci/scripts/build-briefcase.sh b/ci/scripts/build-briefcase.sh
old mode 100644
new mode 100755
index a75402277..b5e1b8e9f
--- a/ci/scripts/build-briefcase.sh
+++ b/ci/scripts/build-briefcase.sh
@@ -2,5 +2,5 @@ set -euo pipefail
 
 nix-build . \
   -I briefcase="$(pwd)" \
-  -I nixpkgs=/var/lib/buildkite-agent-socrates/nixpkgs-channels \
+  --no-out-link \
   --show-trace
diff --git a/ci/scripts/build-socrates.sh b/ci/scripts/build-socrates.sh
old mode 100644
new mode 100755
index e7b550ea7..f822c16ec
--- a/ci/scripts/build-socrates.sh
+++ b/ci/scripts/build-socrates.sh
@@ -5,4 +5,5 @@ nix-build '<nixpkgs/nixos>' \
   -I nixpkgs=/var/lib/buildkite-agent-socrates/nixpkgs-channels \
   -I nixos-config=nixos/socrates/default.nix \
   -A system \
+  --no-out-link \
   --show-trace