diff --git a/src/browser/CoreBrowserTerminal.ts b/src/browser/CoreBrowserTerminal.ts
index 7f9b95652..0f452aff7 100644
--- a/src/browser/CoreBrowserTerminal.ts
+++ b/src/browser/CoreBrowserTerminal.ts
@@ -610,9 +610,6 @@ export class CoreBrowserTerminal extends CoreTerminal implements ITerminal {
     // Listen for mouse events and translate
     // them into terminal mouse protocols.
     this.bindMouse();
-
-    // Emit kitty keyboard protocol support notification (31 = all flags supported)
-    this.coreService.triggerDataEvent(`${C0.ESC}[>31u`);
   }
 
   private _createRenderer(): IRenderer {
diff --git a/src/common/InputHandler.ts b/src/common/InputHandler.ts
index 4d37898ff..641e68a85 100644
--- a/src/common/InputHandler.ts
+++ b/src/common/InputHandler.ts
@@ -2012,8 +2012,6 @@ export class InputHandler extends Disposable implements IInputHandler {
           this._coreService.isCursorInitialized = true;
           this._onRequestRefreshRows.fire(undefined);
           this._onRequestSyncScrollBar.fire();
-          // Emit kitty keyboard protocol support notification
-          this._coreService.triggerDataEvent(`${C0.ESC}[>31u`);
           break;
         case 2004: // bracketed paste mode (https://cirw.in/blog/bracketed-paste)
           this._coreService.decPrivateModes.bracketedPasteMode = true;
diff --git a/src/headless/Terminal.ts b/src/headless/Terminal.ts
index 41aaf4b66..3480856e3 100644
--- a/src/headless/Terminal.ts
+++ b/src/headless/Terminal.ts
@@ -55,9 +55,6 @@ export class Terminal extends CoreTerminal {
     this._register(Event.forward(this._inputHandler.onA11yChar, this._onA11yCharEmitter));
     this._register(Event.forward(this._inputHandler.onA11yTab, this._onA11yTabEmitter));
     this._register(Event.forward(Event.map(this._inputHandler.onRequestRefreshRows, e => ({ start: e?.start ?? 0, end: e?.end ?? this.rows - 1 })), this._onRender));
-
-    // Emit kitty keyboard protocol support notification (31 = all flags supported)
-    this.coreService.triggerDataEvent(`${C0.ESC}[>31u`);
   }
 
   /**