diff --git a/src/View/Frictions/Window.py b/src/View/Frictions/Window.py
index a1922ddf..c0c7d81b 100644
--- a/src/View/Frictions/Window.py
+++ b/src/View/Frictions/Window.py
@@ -136,6 +136,7 @@ class FrictionsWindow(PamhyrWindow):
         self.plot = PlotKPZ(
             canvas=self.canvas,
             data=self._reach.reach,
+            study=self._study,
             trad=self._trad,
             toolbar=None,
         )