diff --git a/mainwin.py b/mainwin.py
index 2e5a8d0..e9fd8a4 100644
--- a/mainwin.py
+++ b/mainwin.py
@@ -57,7 +57,7 @@ class MainWindow(QMainWindow):
                 sub.plot.setData(pd.xs, pd.ys)
 
         if show_it:
-            ps = lst.data[name]
+            pd = lst.data[name]
             self.sig_make_new_plot.emit(name, pd)
 
 
diff --git a/mdi.py b/mdi.py
index c838226..54612fa 100644
--- a/mdi.py
+++ b/mdi.py
@@ -4,7 +4,7 @@ from PyQt5.QtGui import QPainter
 import pyqtgraph as pg
 
 import assets
-from theme import MDI_BKG, pg_plot_style
+from theme import MDI_BKG
 
 
 class MDIArea(QMdiArea):
diff --git a/plotdesc.py b/plotdesc.py
index bea0899..be7f042 100644
--- a/plotdesc.py
+++ b/plotdesc.py
@@ -1,4 +1,3 @@
-import pyqtgraph as pg
 from theme import pg_plot_style