diff --git a/src/renderer/src/components/settings/TerminalThemePreview.tsx b/src/renderer/src/components/settings/TerminalThemePreview.tsx
index dc3b1b8354a..31e45942438 100644
--- a/src/renderer/src/components/settings/TerminalThemePreview.tsx
+++ b/src/renderer/src/components/settings/TerminalThemePreview.tsx
@@ -14,7 +14,7 @@ export function TerminalThemePreview({
   title,
   description,
   appearance,
-  dividerThicknessPx = 1,
+  dividerThicknessPx = 3,
   inactivePaneOpacity = 0.9,
   activePaneOpacity = 1
 }: TerminalThemePreviewProps): React.JSX.Element {
diff --git a/src/shared/constants.ts b/src/shared/constants.ts
index b1d68442100..fa5a4aa3d4c 100644
--- a/src/shared/constants.ts
+++ b/src/shared/constants.ts
@@ -50,7 +50,7 @@ export function getDefaultSettings(homedir: string): GlobalSettings {
     terminalInactivePaneOpacity: 0.8,
     terminalActivePaneOpacity: 1,
     terminalPaneOpacityTransitionMs: 140,
-    terminalDividerThicknessPx: 1,
+    terminalDividerThicknessPx: 3,
     terminalScrollbackBytes: 10_000_000,
     rightSidebarOpenByDefault: true
   }