diff --git a/python/port/mod/matplotlib/plot_controller.cpp b/python/port/mod/matplotlib/plot_controller.cpp
index e69de29bb..fabb0eac9 100644
--- a/python/port/mod/matplotlib/plot_controller.cpp
+++ b/python/port/mod/matplotlib/plot_controller.cpp
@@ -0,0 +1,10 @@
+#include "plot_controller.h"
+
+namespace Matplotlib {
+
+void PlotController::viewDidDisappear() {
+  MicroPython::ExecutionViewControllerHelper::viewDidDisappear(this);
+  m_store->flush();
+}
+
+}
diff --git a/python/port/mod/matplotlib/plot_controller.h b/python/port/mod/matplotlib/plot_controller.h
index eba046b24..88dc9d213 100644
--- a/python/port/mod/matplotlib/plot_controller.h
+++ b/python/port/mod/matplotlib/plot_controller.h
@@ -13,7 +13,7 @@ public:
   PlotController(PlotStore * store, MicroPython::ExecutionEnvironment * executiveEnvironment) : Shared::ZoomAndPanCurveViewController(nullptr), ExecutionViewControllerHelper(executiveEnvironment), m_store(store), m_view(m_store) {}
 
   void viewWillAppear() override { MicroPython::ExecutionViewControllerHelper::viewWillAppear(this); }
-  void viewDidDisappear() override { MicroPython::ExecutionViewControllerHelper::viewDidDisappear(this); }
+  void viewDidDisappear() override;
 
 protected:
   Shared::CurveView * curveView() override { return &m_view; }