diff --git a/packages/core/src/utils/compatibility.test.ts b/packages/core/src/utils/compatibility.test.ts
index c94cbee3a6..28fa26453c 100644
--- a/packages/core/src/utils/compatibility.test.ts
+++ b/packages/core/src/utils/compatibility.test.ts
@@ -289,19 +289,6 @@ describe('compatibility', () => {
       );
     });
 
-    it('should return tmux warning when detected and in alternate buffer', () => {
-      vi.stubEnv('TMUX', '/tmp/tmux-1001/default,1,0');
-
-      const warnings = getCompatibilityWarnings({ isAlternateBuffer: true });
-      expect(warnings).toContainEqual(
-        expect.objectContaining({
-          id: 'tmux-alternate-buffer',
-          message: expect.stringContaining('tmux detected'),
-          priority: WarningPriority.High,
-        }),
-      );
-    });
-
     it('should return low-color tmux warning when detected', () => {
       vi.stubEnv('TERM', 'screen');
       vi.stubEnv('TMUX', '1');
diff --git a/packages/core/src/utils/compatibility.ts b/packages/core/src/utils/compatibility.ts
index 4b126bd4eb..8a997b42cf 100644
--- a/packages/core/src/utils/compatibility.ts
+++ b/packages/core/src/utils/compatibility.ts
@@ -145,15 +145,6 @@ export function getCompatibilityWarnings(options?: {
     });
   }
 
-  if (isTmux() && options?.isAlternateBuffer) {
-    warnings.push({
-      id: 'tmux-alternate-buffer',
-      message:
-        'Warning: tmux detected — alternate buffer mode may cause unexpected scrollback loss and flickering. If you experience issues, disable it in /settings → "Use Alternate Screen Buffer".\n    Tip: Use Ctrl-b [ to access tmux copy mode for scrolling history.',
-      priority: WarningPriority.High,
-    });
-  }
-
   if (isLowColorTmux()) {
     warnings.push({
       id: 'low-color-tmux',