diff --git a/lib/Exif.php b/lib/Exif.php
index 68f0255d..0c4e5e80 100644
--- a/lib/Exif.php
+++ b/lib/Exif.php
@@ -414,6 +414,8 @@ class Exif
 
     private static function getExiftool(): array
     {
+        putenv('LANG=C'); // set perl lang to suppress warning
+
         return BinExt::getExiftool();
     }