diff --git a/test/default.nix b/test/default.nix
index d53dcfc..06eea7b 100644
--- a/test/default.nix
+++ b/test/default.nix
@@ -35,6 +35,11 @@ nixosTest {
           set -e
           WORK="$(mktemp -ud)"
           cp -r "${self.packages.${system}.fortify.src}" "$WORK"
+
+          # FIXME: remove after fixing intermittent fault
+          echo "src:" && cat "${self.packages.${system}.fortify.src}/sandbox/ops.go"
+          echo "work:" && cat "$WORK/sandbox/ops.go"
+
           chmod -R +w "$WORK"
           cd "$WORK"
           ${fhs}/bin/fortify-fhs -c \