diff --git a/src/resources/formats/html/_quarto-rules.scss b/src/resources/formats/html/_quarto-rules.scss
index 0c86d213e8d..dcf5e53397d 100644
--- a/src/resources/formats/html/_quarto-rules.scss
+++ b/src/resources/formats/html/_quarto-rules.scss
@@ -587,9 +587,12 @@ div.ansi-escaped-output {
   --quarto-text-muted: #{$text-muted};
   --quarto-border-color: #{$table-border-color};
   --quarto-border-width: #{$border-width};
-  --quarto-border-radius: #{$border-radius};
+  @if not variable-exists(enable-rounded) or $enable-rounded == true {
+    --quarto-border-radius: #{$border-radius};
+  }
 }
 
+
 /* rules to support GT table styling */
 table.gt_table {
   color: var(--quarto-body-color);
diff --git a/src/resources/formats/html/bootstrap/_bootstrap-rules.scss b/src/resources/formats/html/bootstrap/_bootstrap-rules.scss
index b1332b5d71d..a4676bee06b 100644
--- a/src/resources/formats/html/bootstrap/_bootstrap-rules.scss
+++ b/src/resources/formats/html/bootstrap/_bootstrap-rules.scss
@@ -835,7 +835,9 @@ div.sourceCode {
   @if $code-block-bg {
     background-color: $code-block-bg-color;
     border: 1px solid $code-block-bg-color;
-    border-radius: $border-radius;
+    @if $enable-rounded {
+      border-radius: $border-radius;
+    }
   } @else {
     background-color: $body-bg !important;
     border: none;