diff --git a/lib/src/e2ee/e2ee_manager.dart b/lib/src/e2ee/e2ee_manager.dart
index 1f3a4041..b9278d09 100644
--- a/lib/src/e2ee/e2ee_manager.dart
+++ b/lib/src/e2ee/e2ee_manager.dart
@@ -47,7 +47,7 @@ class E2EEManager {
       _listener!
         ..on<LocalTrackPublishedEvent>((event) async {
           if (event.publication.encryptionType == EncryptionType.kNone ||
-              isSVCCodec(event.publication.track?.codec ?? '')) {
+              isAV1Codec(event.publication.track?.codec ?? '')) {
             // no need to setup frame cryptor
             return;
           }
@@ -81,7 +81,7 @@ class E2EEManager {
         })
         ..on<TrackSubscribedEvent>((event) async {
           final codec = event.publication.mimeType.split('/')[1];
-          if (event.publication.encryptionType == EncryptionType.kNone || isSVCCodec(codec)) {
+          if (event.publication.encryptionType == EncryptionType.kNone || isAV1Codec(codec)) {
             // no need to setup frame cryptor
             return;
           }
diff --git a/lib/src/utils.dart b/lib/src/utils.dart
index 33954847..d2390de9 100644
--- a/lib/src/utils.dart
+++ b/lib/src/utils.dart
@@ -567,6 +567,8 @@ const refreshSubscribedCodecAfterNewCodec = 5000;
 
 bool isSVCCodec(String codec) => ['vp9', 'av1'].contains(codec.toLowerCase());
 
+bool isAV1Codec(String codec) => codec.toLowerCase() == 'av1';
+
 class ScalabilityMode {
   late num spatial;