diff --git a/test/test_sfg.py b/test/test_sfg.py
index 06628ba8af36af5b409032d2f5ed73547fa3ad35..f7aff28f9f1321bf9c06287967c0698389ddf629 100644
--- a/test/test_sfg.py
+++ b/test/test_sfg.py
@@ -427,7 +427,7 @@ class TestGetPrecedenceList:
         assert set([port.operation.key(port.index, port.operation.name)
                     for port in precedence_list[1]]) == {"CMUL1"}
 
-        assert set([port.opeation.key(port.index, port.operation.name)
+        assert set([port.operation.key(port.index, port.operation.name)
                     for port in precedence_list[2]]) == {"NESTED_SFG.0", "NESTED_SFG.1"}
 
     def test_precedence_sfg_multiple_outputs_different_precedences(self, sfg_two_inputs_two_outputs_independent):