diff --git a/frontend/src/desktop/components/DesktopWorkspace.tsx b/frontend/src/desktop/components/DesktopWorkspace.tsx
index 3b6ef9a..8f0e036 100644
--- a/frontend/src/desktop/components/DesktopWorkspace.tsx
+++ b/frontend/src/desktop/components/DesktopWorkspace.tsx
@@ -233,12 +233,13 @@ const DesktopWorkspaceContent: React.FC<DesktopWorkspaceProps> = ({
       }
 
       // Space preview logic
-      if (e.code === 'Space' && selectedDocumentIds.length > 0) {
+      if ((e.code === 'Space' || e.code === 'Enter') && selectedDocumentIds.length > 0) {
         const lastId = selectedDocumentIds[selectedDocumentIds.length - 1];
         const doc = items.find(i => String(i.id) === lastId);
         if (doc) {
           e.preventDefault();
-          openDocument(doc, 'preview');
+          const target = e.code === 'Enter' ? 'sidepanel' : 'preview';
+          openDocument(doc, target);
           return;
         }
       }