diff --git a/qlasskit/ast2ast/constantfolder.py b/qlasskit/ast2ast/constantfolder.py
index f0846869..b5ecffae 100644
--- a/qlasskit/ast2ast/constantfolder.py
+++ b/qlasskit/ast2ast/constantfolder.py
@@ -51,7 +51,7 @@ def visit_Compare(self, node):
                 }.get(type(node.ops[0]))
                 if op:
                     result = op(node.left.value, node.comparators[0].value)
-                    return ast.Constant(value=result)
+                    return ast.Constant(result)
         return node
 
     def visit_UnaryOp(self, node):
diff --git a/test/test_ast2ast.py b/test/test_ast2ast.py
index 07935721..dea72eae 100644
--- a/test/test_ast2ast.py
+++ b/test/test_ast2ast.py
@@ -21,6 +21,19 @@
 from qlasskit.ast2ast import ASTRewriter, ConstantFolder
 
 
+class AddKind(ast.NodeTransformer):
+    def visit_Constant(self, n):
+        n.kind = None
+        return n
+
+def add_kind(n):
+    if sys.version_info >= (3, 9):
+        return n
+    
+    return AddKind().visit(n)
+
+
+    
 class TestASTRewriter(unittest.TestCase):
 
     def setUp(self):
@@ -37,7 +50,7 @@ def test_exponentiation_transformation(self, code, expected_code):
         tree = ast.parse(code)
         new_tree = self.rewriter.visit(tree)
         expected_tree = ast.parse(expected_code)
-        self.assertEqual(ast.dump(new_tree), ast.dump(expected_tree))
+        self.assertEqual(ast.dump(add_kind(new_tree)), ast.dump(expected_tree))
 
     def test_exponentiation_with_zero(self):
         code = "a = b ** 0"
@@ -52,7 +65,7 @@ def test_exponentiation_with_zero(self):
         if sys.version_info >= (3, 9):
             expected_code = "a = 1"
             expected_tree = ast.parse(expected_code)
-            self.assertEqual(ast.dump(new_tree), ast.dump(expected_tree))
+            self.assertEqual(ast.dump(add_kind(new_tree)), ast.dump(expected_tree))
 
 
 class TestASTConstantFolder(unittest.TestCase):
@@ -72,4 +85,4 @@ def test_expected_code(self, code, expected_code):
         tree = ast.parse(code)
         new_tree = self.rewriter.visit(tree)
         expected_tree = ast.parse(expected_code)
-        self.assertEqual(ast.dump(new_tree), ast.dump(expected_tree))
+        self.assertEqual(ast.dump(add_kind(new_tree)), ast.dump(expected_tree))