diff --git a/yt_dlp/utils/jslib/devalue.py b/yt_dlp/utils/jslib/devalue.py
index bd539e4bf..62addf077 100644
--- a/yt_dlp/utils/jslib/devalue.py
+++ b/yt_dlp/utils/jslib/devalue.py
@@ -64,7 +64,7 @@ def parse_iter(parsed: typing.Any, /, *, revivers: dict[str, collections.abc.Cal
             try:
                 resolved[source] = target[index] = reviver(target[index])
             except Exception as error:
-                yield TypeError(f'Failed to parse {source} as {name!r}: {error}')
+                yield TypeError(f'failed to parse {source} as {name!r}: {error}')
                 resolved[source] = target[index] = None
             continue