diff --git a/pyteal/ast/naryexpr.py b/pyteal/ast/naryexpr.py
index 240220492..3114b25cd 100644
--- a/pyteal/ast/naryexpr.py
+++ b/pyteal/ast/naryexpr.py
@@ -48,7 +48,7 @@ def __teal__(self, options: "CompileOptions"):
         return start, end
 
     def __str__(self):
-        ret_str = ("(" + str(self.op),)
+        ret_str = "(" + str(self.op)
         for a in self.args:
             ret_str += " " + a.__str__()
         ret_str += ")"