diff --git a/calibration_plot.m b/calibration_plot.m
index a469252..f48ef94 100644
--- a/calibration_plot.m
+++ b/calibration_plot.m
@@ -121,7 +121,9 @@ data_parabolic = ...
     param_parabolic(3);
 mstd_parabolic = sqrt(...
     sum((data_parabolic - all_data(2, :)).^2) / size(all_data, 2));
-scatter(all_data(1, :), data_parabolic, 'k.');
+scatter(all_data(1, :), data_parabolic, 'g.');
+
+legend('all data', 'median val', 'linear fit', 'parabolic fit', 'location', 'best')
 
 fprintf('Std Err:\n');
 fprintf(' linear mode: %.6f\n', mstd_linear);
diff --git a/libMeasurement.py b/libMeasurement.py
index 5299bcf..66eb65f 100755
--- a/libMeasurement.py
+++ b/libMeasurement.py
@@ -236,7 +236,7 @@ def main():
         help="load a config json file"
     )
     p.add_argument(
-        '--verbose', '-v'
+        '--verbose', '-v',
         default=False,
         action="store_true"
         help="if set, show detailed messages"