diff --git a/pyaedt/edb_core/edb_data/simulation_setup.py b/pyaedt/edb_core/edb_data/simulation_setup.py
index 1fe695f616f..adfe33d7562 100644
--- a/pyaedt/edb_core/edb_data/simulation_setup.py
+++ b/pyaedt/edb_core/edb_data/simulation_setup.py
@@ -214,6 +214,8 @@ def add_frequency_sweep(self, name=None, frequency_sweep=None):
 
         if not frequency_sweep:
             frequency_sweep = [["linear scale", "0.1GHz", "10GHz", "0.1GHz"]]
+        elif not isinstance(frequency_sweep[0], list):
+            frequency_sweep = [frequency_sweep]
 
         if not name:
             name = generate_unique_name("sweep")