1 files changed, 3 insertions, 0 deletions
diff --git a/src/libstore/globals.hh b/src/libstore/globals.hh
index cbc6d4e9848e..9300edbe9615 100644
--- a/src/libstore/globals.hh
+++ b/src/libstore/globals.hh
@@ -186,6 +186,9 @@ struct Settings {
     /* Whether to lock the Nix client and worker to the same CPU. */
     bool lockCPU;
 
+    /* Whether to show a stack trace if Nix evaluation fails. */
+    bool showTrace;
+
 private:
     SettingsMap settings, overrides;