diff --git a/tests/test_plot/kiconf_init.py b/tests/test_plot/kiconf_init.py
index e108e1bd..bd13e448 100755
--- a/tests/test_plot/kiconf_init.py
+++ b/tests/test_plot/kiconf_init.py
@@ -67,6 +67,8 @@ def do_init():
     KiConf.init(os.path.join(context.BOARDS_DIR, 'v5_errors/kibom-test.sch'))
     # Check we can call it again and nothing is done
     KiConf.init('bogus')
+    # Try to load the sym-lib-table
+    KiConf.get_sym_lib_aliases()
 
 
 if args.patch_get_path:
diff --git a/tests/test_plot/test_kicad_config_errors.py b/tests/test_plot/test_kicad_config_errors.py
index 0ba209fe..2ab9e47c 100644
--- a/tests/test_plot/test_kicad_config_errors.py
+++ b/tests/test_plot/test_kicad_config_errors.py
@@ -119,7 +119,7 @@ def test_kicad_conf_sym_err_1(monkeypatch):
     with monkeypatch.context() as m:
         m.setenv("KICAD_CONFIG_HOME", 'tests/data/kicad_err_1')
         res = check_load_conf(dir='kicad_err_1', catch_conf_error=True)
-    assert "raise KiConfError('Symbol libs table missing signature" in res, res
+    assert "Too many closing brackets. Expected no character left in the sexp" in res, res
 
 
 def test_kicad_conf_sym_err_2(monkeypatch):
@@ -128,7 +128,7 @@ def test_kicad_conf_sym_err_2(monkeypatch):
     with monkeypatch.context() as m:
         m.setenv("KICAD_CONFIG_HOME", 'tests/data/kicad_err_2')
         res = check_load_conf(dir='kicad_err_2', catch_conf_error=True)
-    assert "raise KiConfError('Unknown symbol table entry" in res, res
+    assert "Unknown lib table entry" in res, res
 
 
 def mocked_get_path_1(name, scheme):