diff --git a/FlippR-Driver/src/output/detail/DisplayBoardPinController.cpp b/FlippR-Driver/src/output/detail/DisplayBoardPinController.cpp
index c0f486d..ba2a4a2 100644
--- a/FlippR-Driver/src/output/detail/DisplayBoardPinController.cpp
+++ b/FlippR-Driver/src/output/detail/DisplayBoardPinController.cpp
@@ -27,7 +27,7 @@ DisplayBoardPinController::DisplayBoardPinController(std::map<std::string, uint8
 
 void DisplayBoardPinController::clear()
 {
-  std::for_each(this->pins_display_board.begin(), this->pins_display_board.end(), [](auto& pin) { write_pin(pin->second, 0); });
+  std::for_each(this->pins_display_board.begin(), this->pins_display_board.end(), [](auto& pin) { write_pin(pin.second, 0); });
 }
 
 DisplayBoardPinController::DisplayBoardPinController() :