diff --git a/apps/statistics/store_controller.cpp b/apps/statistics/store_controller.cpp
index cb79e0346..627f9262f 100644
--- a/apps/statistics/store_controller.cpp
+++ b/apps/statistics/store_controller.cpp
@@ -33,7 +33,7 @@ void StoreController::setFormulaLabel() {
   static_cast<ContentView *>(view())->formulaInputView()->setBufferText(text);
 }
 
-bool StoreController::fillColumnWithFormula(Expression * formula) {
+bool StoreController::fillColumnWithFormula(Expression formula) {
   return privateFillColumnWithFormula(formula, Symbol::isSeriesSymbol);
 }
 
diff --git a/apps/statistics/store_controller.h b/apps/statistics/store_controller.h
index a32ada438..ba61ceb89 100644
--- a/apps/statistics/store_controller.h
+++ b/apps/statistics/store_controller.h
@@ -14,7 +14,7 @@ public:
   StoreController(Responder * parentResponder, Store * store, ButtonRowController * header);
   Shared::StoreContext * storeContext() override;
   void setFormulaLabel() override;
-  bool fillColumnWithFormula(Poincare::Expression * formula) override;
+  bool fillColumnWithFormula(Poincare::Expression formula) override;
   void willDisplayCellAtLocation(HighlightCell * cell, int i, int j) override;
 private:
   bool setDataAtLocation(double floatBody, int columnIndex, int rowIndex) override;