diff --git a/packages/web-ui/src/WalletSidebar.tsx b/packages/web-ui/src/WalletSidebar.tsx
index f0bb925..486af8e 100644
--- a/packages/web-ui/src/WalletSidebar.tsx
+++ b/packages/web-ui/src/WalletSidebar.tsx
@@ -112,8 +112,23 @@ export function WalletSidebar({
                       <span className="side-wallet-dot" aria-hidden="true" />
                       <span className="side-wallet-label">{w.label}</span>
                       {isActive && <span className="side-wallet-tag">active</span>}
-                      {!isActive && i === 0 && <span className="side-wallet-tag muted">default</span>}
+                      {i === 0 && <span className="side-wallet-tag muted">default</span>}
                     </button>
+                    {/* Make default — moves the wallet to the top of the
+                        order, which is the one auto-opened after unlock
+                        (same thing dragging it to the top does). */}
+                    {i > 0 && (
+                      <button
+                        className="side-wallet-default"
+                        onClick={() => move(i, 0)}
+                        aria-label={`Make ${w.label} the default wallet`}
+                        title="Make default (opens first after unlock)"
+                      >
+                        <svg width="12" height="12" viewBox="0 0 24 24" fill="none" stroke="currentColor" strokeWidth="2" strokeLinecap="round" strokeLinejoin="round" aria-hidden="true">
+                          <path d="M12 2l3.09 6.26L22 9.27l-5 4.87 1.18 6.88L12 17.77l-6.18 3.25L7 14.14 2 9.27l6.91-1.01L12 2z" />
+                        </svg>
+                      </button>
+                    )}
                     <button
                       className="side-wallet-rename"
                       onClick={() => startRename(w.label)}
diff --git a/packages/web-ui/src/styles.css b/packages/web-ui/src/styles.css
index b7398be..271111f 100644
--- a/packages/web-ui/src/styles.css
+++ b/packages/web-ui/src/styles.css
@@ -183,7 +183,7 @@ body:has(.shell-dashboard) {
    confirm and then deletes the encrypted seed. Same base sizing +
    fade-in behavior; the forget button hovers to the danger color and
    fades away entirely when it's disabled (the active-wallet row). */
-.side-wallet-rename, .side-wallet-forget {
+.side-wallet-rename, .side-wallet-forget, .side-wallet-default {
   width: 24px; height: 24px; flex-shrink: 0;
   display: inline-flex; align-items: center; justify-content: center;
   border: 0; border-radius: 6px; background: transparent;
@@ -191,8 +191,9 @@ body:has(.shell-dashboard) {
   transition: opacity 0.12s, color 0.12s;
 }
 .side-wallet-row:hover .side-wallet-rename,
+.side-wallet-row:hover .side-wallet-default,
 .side-wallet-row:hover .side-wallet-forget:not(:disabled) { opacity: 0.8; }
-.side-wallet-rename:hover { color: var(--accent); opacity: 1; }
+.side-wallet-rename:hover, .side-wallet-default:hover { color: var(--accent); opacity: 1; }
 .side-wallet-forget:hover { color: var(--danger, #e05252); opacity: 1; }
 .side-wallet-forget:disabled { opacity: 0; cursor: default; pointer-events: none; }
 .side-wallet-edit { cursor: default; flex-wrap: wrap; }