diff --git a/src/ansys/aedt/core/hfss.py b/src/ansys/aedt/core/hfss.py
index 5d86c74a165..ce9b9386d29 100644
--- a/src/ansys/aedt/core/hfss.py
+++ b/src/ansys/aedt/core/hfss.py
@@ -3574,7 +3574,7 @@ def assign_impedance_to_sheet(
 
         """
 
-        if self.solution_type in ["Modal", "Terminal", "Transient Network"]:
+        if self.solution_type in ["Modal", "Terminal", "Transient Network", "Eigenmode"]:
             if not name:
                 name = generate_unique_name("Imped")
             elif name in self.modeler.get_boundaries_name():
diff --git a/tests/system/general/test_20_HFSS.py b/tests/system/general/test_20_HFSS.py
index 8bf8447e0c2..15e54a4ecb1 100644
--- a/tests/system/general/test_20_HFSS.py
+++ b/tests/system/general/test_20_HFSS.py
@@ -737,7 +737,7 @@ def test_15_create_perfects_on_sheets(self):
         assert perfect_e_eigen.name in self.aedtapp.modeler.get_boundaries_name()
         self.aedtapp.solution_type = "solution_type"
 
-    def test_16_create_impedance_on_sheets(self):
+    def test_16_a_create_impedance_on_sheets(self):
         rect = self.aedtapp.modeler.create_rectangle(
             self.aedtapp.PLANE.XY, [0, 0, 0], [10, 2], name="ImpBound", material="Copper"
         )
@@ -760,6 +760,14 @@ def test_16_create_impedance_on_sheets(self):
         imp3 = self.aedtapp.assign_impedance_to_sheet(impedance_box.top_face_z.id, "TL4", [50, 20, 0, 0], [25, 0, 5, 0])
         assert imp3.name in self.aedtapp.modeler.get_boundaries_name()
 
+    def test_16_b_create_impedance_on_sheets_eigenmode(self, add_app):
+        aedtapp = add_app(solution_type="Eigenmode", project_name="test_16_b")
+        rect = aedtapp.modeler.create_rectangle(
+            aedtapp.PLANE.XY, [0, 0, 0], [10, 2], name="ImpBound", material="Copper"
+        )
+        imp1 = aedtapp.assign_impedance_to_sheet(rect.name, "TL2", 50, 25)
+        assert imp1.name in aedtapp.modeler.get_boundaries_name()
+
     def test_17_create_lumpedrlc_on_sheets(self):
         rect = self.aedtapp.modeler.create_rectangle(
             self.aedtapp.PLANE.XY, [0, 0, 0], [10, 2], name="rlcBound", material="Copper"