diff --git a/test/test_youtube_signature.py b/test/test_youtube_signature.py
index 4b526ff2e..2f124a738 100644
--- a/test/test_youtube_signature.py
+++ b/test/test_youtube_signature.py
@@ -114,6 +114,10 @@ _NSIG_TESTS = [
         'https://www.youtube.com/s/player/009f1d77/player_ias.vflset/en_US/base.js',
         '5dwFHw8aFWQUQtffRq', 'audescmLUzI3jw',
     ),
+    (
+        'https://www.youtube.com/s/player/dc0c6770/player_ias.vflset/en_US/base.js',
+        '5EHDMgYLV6HPGk_Mu-kk', 'n9lUJLHbxUI0GQ',
+    ),
 ]
 
 
diff --git a/yt_dlp/jsinterp.py b/yt_dlp/jsinterp.py
index 2b68f53fa..1995e9d0e 100644
--- a/yt_dlp/jsinterp.py
+++ b/yt_dlp/jsinterp.py
@@ -98,8 +98,8 @@ _OPERATORS = {  # None => Defined in JSInterpreter._operator
     '&': _js_bit_op(operator.and_),
 
     '===': operator.is_,
-    '==': _js_eq_op(operator.eq),
     '!==': operator.is_not,
+    '==': _js_eq_op(operator.eq),
     '!=': _js_eq_op(operator.ne),
 
     '<=': _js_comp_op(operator.le),