diff --git a/src/components/middle/composer/hooks/useVoiceRecording.ts b/src/components/middle/composer/hooks/useVoiceRecording.ts
index 0a711eb0f..ff3534bb2 100644
--- a/src/components/middle/composer/hooks/useVoiceRecording.ts
+++ b/src/components/middle/composer/hooks/useVoiceRecording.ts
@@ -2,7 +2,7 @@ import {
   useCallback, useEffect, useRef, useState,
 } from '../../../../lib/teact/teact';
 
-import { IS_IOS, IS_VOICE_RECORDING_SUPPORTED } from '../../../../util/environment';
+import { IS_SAFARI, IS_VOICE_RECORDING_SUPPORTED } from '../../../../util/environment';
 import * as voiceRecording from '../../../../util/voiceRecording';
 import captureEscKeyListener from '../../../../util/captureEscKeyListener';
 
@@ -17,7 +17,7 @@ export default () => {
 
   useEffect(() => {
     // Preloading worker fixes silent first record on iOS
-    if (IS_IOS && IS_VOICE_RECORDING_SUPPORTED) {
+    if (IS_SAFARI && IS_VOICE_RECORDING_SUPPORTED) {
       void voiceRecording.init();
     }
   }, []);
diff --git a/src/util/environment.ts b/src/util/environment.ts
index 4c36f15e5..45bdc9ad4 100644
--- a/src/util/environment.ts
+++ b/src/util/environment.ts
@@ -50,9 +50,11 @@ export const IS_SINGLE_COLUMN_LAYOUT = window.innerWidth <= MOBILE_SCREEN_MAX_WI
 export const IS_TABLET_COLUMN_LAYOUT = !IS_SINGLE_COLUMN_LAYOUT && (
   window.innerWidth <= MIN_SCREEN_WIDTH_FOR_STATIC_LEFT_COLUMN
 );
-export const IS_VOICE_RECORDING_SUPPORTED = (navigator.mediaDevices && 'getUserMedia' in navigator.mediaDevices && (
-  window.AudioContext || (window as any).webkitAudioContext
-));
+export const IS_VOICE_RECORDING_SUPPORTED = Boolean(
+  navigator.mediaDevices && 'getUserMedia' in navigator.mediaDevices && (
+    window.AudioContext || (window as any).webkitAudioContext
+  ),
+);
 export const IS_SMOOTH_SCROLL_SUPPORTED = 'scrollBehavior' in document.documentElement.style;
 export const IS_EMOJI_SUPPORTED = PLATFORM_ENV && (IS_MAC_OS || IS_IOS);
 export const IS_SERVICE_WORKER_SUPPORTED = 'serviceWorker' in navigator;