diff --git a/tests/test_plotting.py b/tests/test_plotting.py
index a58981588..beb42822c 100644
--- a/tests/test_plotting.py
+++ b/tests/test_plotting.py
@@ -54,8 +54,8 @@ def test_line_plot(plot_df):
     return fig
 
 
-@pytest.mark.mpl_image_compare(**MPL_KWARGS)
 def test_line_plot_cmap(plot_df):
+    # need to provide cmap and color both
     _plot_df = copy.deepcopy(plot_df)
     _plot_df.set_meta(meta=[np.nan] * 4, name='test')
     pytest.raises(ValueError, _plot_df.line_plot, cmap='magma')