diff --git a/apps/mobile/src/features/archive/ArchivedThreadsScreen.tsx b/apps/mobile/src/features/archive/ArchivedThreadsScreen.tsx
index 78b3b62a3c1dff22fa7778d1cd1025e9e17fd38a..6161c203f11de563dee23fffc03f20367597174b 100644
--- a/apps/mobile/src/features/archive/ArchivedThreadsScreen.tsx
+++ b/apps/mobile/src/features/archive/ArchivedThreadsScreen.tsx
@@ -636,7 +636,9 @@ export function ArchivedThreadsScreen(props: {
   }, [isFiltered, isInitialLoad]);
 
   return (
-    <View className="flex-1 bg-sheet">
+    // Keep the list inside this native container. Form-sheet resizing otherwise
+    // treats the flattened background as a header and shrinks the list to zero.
+    <View collapsable={false} className="flex-1 bg-sheet">
       <ArchivedThreadsHeader
         environments={props.environments}
         searchQuery={props.searchQuery}