diff --git a/rustfs/src/storage/ecfs.rs b/rustfs/src/storage/ecfs.rs
index d13e1cb7..37fd884f 100644
--- a/rustfs/src/storage/ecfs.rs
+++ b/rustfs/src/storage/ecfs.rs
@@ -1230,6 +1230,7 @@ impl S3 for FS {
         let prefix = prefix.unwrap_or_default();
         let max_keys = match max_keys {
             Some(v) if v > 0 && v <= 1000 => v,
+            Some(v) if v > 1000 => 1000,
             None => 1000,
             _ => return Err(s3_error!(InvalidArgument, "max-keys must be between 1 and 1000")),
         };