diff --git a/theme-dark.scss b/theme-dark.scss
index 2f09f49a0..bd97f66f0 100644
--- a/theme-dark.scss
+++ b/theme-dark.scss
@@ -35,6 +35,12 @@ $body-bg: $gray-900;
 $body-color: $gray-100;
 $link-color: $cyan;
 
+// Bootstrap's own $pre-color default (#000, meant for a light background)
+// is hardcoded regardless of theme -- inherit so bare <pre> elements (e.g.
+// Quarto's own .cell-decorator notebook-view prompts) stay legible here.
+// Bootswatch's dark themes (darkly, cyborg) carry the same override.
+$pre-color: inherit;
+
 $light: rgb(32.4,32.4,34.2);
 
 // Navigation element colors