diff --git a/src/id0/root_info.rs b/src/id0/root_info.rs
index 99a2623..f709642 100644
--- a/src/id0/root_info.rs
+++ b/src/id0/root_info.rs
@@ -275,7 +275,10 @@ impl<K: IDAKind> RootInfo<K> {
         match version {
             // TODO old version may contain extra data at the end with unknown purpose
             ..=699 => {}
-            700.. => ensure!(input.is_empty(), "Data left after the IDBParam",),
+            700.. => {
+                #[cfg(feature = "restrictive")]
+                ensure!(input.is_empty(), "Data left after the IDBParam");
+            }
         }
         Ok(param)
     }