diff --git a/packages/tui/src/native-modifiers.ts b/packages/tui/src/native-modifiers.ts
index 3da0aeba..e2cd631c 100644
--- a/packages/tui/src/native-modifiers.ts
+++ b/packages/tui/src/native-modifiers.ts
@@ -49,7 +49,6 @@ function loadNativeModifiersHelper(): NativeModifiersHelper | undefined {
 }
 
 export function isNativeModifierPressed(key: ModifierKey): boolean {
-	if (process.env.PI_TUI_DISABLE_NATIVE_MODIFIERS === "1") return false;
 	const helper = loadNativeModifiersHelper();
 	if (!helper) return false;
 	try {
diff --git a/packages/tui/test/terminal.test.ts b/packages/tui/test/terminal.test.ts
index cf980251..a1990135 100644
--- a/packages/tui/test/terminal.test.ts
+++ b/packages/tui/test/terminal.test.ts
@@ -1,20 +1,7 @@
 import assert from "node:assert";
 import { describe, it } from "node:test";
-import { isNativeModifierPressed } from "../src/native-modifiers.ts";
 import { normalizeAppleTerminalInput, ProcessTerminal } from "../src/terminal.ts";
 
-function withEnv(name: string, value: string | undefined, fn: () => void): void {
-	const previous = process.env[name];
-	if (value === undefined) delete process.env[name];
-	else process.env[name] = value;
-	try {
-		fn();
-	} finally {
-		if (previous === undefined) delete process.env[name];
-		else process.env[name] = previous;
-	}
-}
-
 describe("normalizeAppleTerminalInput", () => {
 	it("rewrites Apple Terminal Return to CSI-u Shift+Enter when Shift is pressed", () => {
 		assert.equal(normalizeAppleTerminalInput("\r", true, true), "\x1b[13;2u");
@@ -32,13 +19,6 @@ describe("normalizeAppleTerminalInput", () => {
 		assert.equal(normalizeAppleTerminalInput("\x1b[13;2u", true, true), "\x1b[13;2u");
 		assert.equal(normalizeAppleTerminalInput("a", true, true), "a");
 	});
-
-	it("treats native helper failure as Shift not pressed", () => {
-		withEnv("PI_TUI_DISABLE_NATIVE_MODIFIERS", "1", () => {
-			assert.equal(isNativeModifierPressed("shift"), false);
-			assert.equal(normalizeAppleTerminalInput("\r", true, isNativeModifierPressed("shift")), "\r");
-		});
-	});
 });
 
 describe("ProcessTerminal dimensions", () => {