diff --git a/src/rmap.rs b/src/rmap.rs
index a80af6e81..e04713b10 100644
--- a/src/rmap.rs
+++ b/src/rmap.rs
@@ -394,7 +394,7 @@ mod tests {
         root.finish(Rc::clone(&root));
 
         let output = format!("{:?}", root);
-        assert!(output.starts_with("ResourceMap"));
-        assert!(output.ends_with("}"));
+        assert!(output.starts_with("ResourceMap {"));
+        assert!(output.ends_with(" }"));
     }
 }