diff --git a/apps/desktop/index.html b/apps/desktop/index.html
index 18f30f8c0..a95c9e444 100644
--- a/apps/desktop/index.html
+++ b/apps/desktop/index.html
@@ -42,7 +42,7 @@
         }
 
         root.classList.toggle("dark", dark);
-        root.dataset.cornerStyle = cornerStyle === "none" || cornerStyle === "large" ? cornerStyle : "small";
+        root.dataset.cornerStyle = cornerStyle === "none" || cornerStyle === "small" ? cornerStyle : "large";
         root.style.colorScheme = dark ? "dark" : "light";
       })();
     </script>
diff --git a/apps/desktop/src/lib/__tests__/app/appTheme.spec.ts b/apps/desktop/src/lib/__tests__/app/appTheme.spec.ts
index c87b77546..8396267ce 100644
--- a/apps/desktop/src/lib/__tests__/app/appTheme.spec.ts
+++ b/apps/desktop/src/lib/__tests__/app/appTheme.spec.ts
@@ -3,9 +3,9 @@ import { normalizeAppCornerStyle } from "@/lib/app/appTheme";
 
 describe("app corner style", () => {
   it.each([
-    [null, "small"],
-    ["", "small"],
-    ["invalid", "small"],
+    [null, "large"],
+    ["", "large"],
+    ["invalid", "large"],
     ["none", "none"],
     ["small", "small"],
     ["large", "large"],
diff --git a/apps/desktop/src/lib/__tests__/app/startupTheme.spec.ts b/apps/desktop/src/lib/__tests__/app/startupTheme.spec.ts
index b079272ab..9f1521919 100644
--- a/apps/desktop/src/lib/__tests__/app/startupTheme.spec.ts
+++ b/apps/desktop/src/lib/__tests__/app/startupTheme.spec.ts
@@ -66,8 +66,8 @@ describe("startup theme", () => {
   });
 
   it.each([
-    [null, "small"],
-    ["invalid", "small"],
+    [null, "large"],
+    ["invalid", "large"],
     ["none", "none"],
     ["small", "small"],
     ["large", "large"],
@@ -82,6 +82,7 @@ describe("startup theme", () => {
 
     expect(toggle).toHaveBeenCalledWith("dark", false);
     expect(root.style.colorScheme).toBe("light");
+    expect(root.dataset.cornerStyle).toBe("large");
   });
 
   it("falls back to light for an invalid persisted mode", () => {
diff --git a/apps/desktop/src/lib/app/appTheme.ts b/apps/desktop/src/lib/app/appTheme.ts
index 6275a6b1d..2ebc5d97e 100644
--- a/apps/desktop/src/lib/app/appTheme.ts
+++ b/apps/desktop/src/lib/app/appTheme.ts
@@ -48,8 +48,8 @@ export function normalizeAppThemePalette(value: string | null): AppThemePalette
 }
 
 export function normalizeAppCornerStyle(value: string | null): AppCornerStyle {
-  if (value === "none" || value === "large") return value;
-  return "small";
+  if (value === "none" || value === "small") return value;
+  return "large";
 }
 
 export function getAppThemePaletteClass(palette: AppThemePalette): string | null {