diff --git a/tree-sitter-p4/test/corpus/instantiations.txt b/tree-sitter-p4/test/corpus/instantiations.txt
index 219a025..c891279 100644
--- a/tree-sitter-p4/test/corpus/instantiations.txt
+++ b/tree-sitter-p4/test/corpus/instantiations.txt
@@ -10,7 +10,8 @@ bool() main;
     (bool)
    )
   )
+  (arguments)
   (identifier)
- ) 
+ )
 )