diff --git a/appview/pages/templates/repo/pulls/pull.html b/appview/pages/templates/repo/pulls/pull.html
index ad9b0349..1540336f 100644
--- a/appview/pages/templates/repo/pulls/pull.html
+++ b/appview/pages/templates/repo/pulls/pull.html
@@ -31,9 +31,11 @@
           if (details.open && !isDesktop()) {
             backdrop.classList.remove('opacity-0', 'pointer-events-none');
             backdrop.classList.add('opacity-100', 'pointer-events-auto');
+            document.body.style.overflow = 'hidden';
           } else {
             backdrop.classList.remove('opacity-100', 'pointer-events-auto');
             backdrop.classList.add('opacity-0', 'pointer-events-none');
+            document.body.style.overflow = '';
           }
         }
       };