diff --git a/tests/modules/applications/optimization/MIS/test_MIS.py b/tests/modules/applications/optimization/MIS/test_MIS.py
index 73ff6cb1..2230a96f 100644
--- a/tests/modules/applications/optimization/MIS/test_MIS.py
+++ b/tests/modules/applications/optimization/MIS/test_MIS.py
@@ -49,9 +49,9 @@ def test_process_solution(self):
 
     def test_validate(self):
         logging.disable(logging.WARNING)
-        self.mis_instance.application = nx.Graph()
-        self.mis_instance.application.add_nodes_from([0, 1, 2])
-        self.mis_instance.application.add_edges_from([(0, 1), (1, 2)])
+        self.mis_instance.graph = nx.Graph()
+        self.mis_instance.graph.add_nodes_from([0, 1, 2])
+        self.mis_instance.graph.add_edges_from([(0, 1), (1, 2)])
 
         valid_solution = [0, 2]
         is_valid, validation_time = self.mis_instance.validate(valid_solution)