diff --git a/selfdrive/ui/qt/onroad.cc b/selfdrive/ui/qt/onroad.cc
index b739998..e16f550 100755
--- a/selfdrive/ui/qt/onroad.cc
+++ b/selfdrive/ui/qt/onroad.cc
@@ -504,7 +504,7 @@ void AnnotatedCameraWidget::drawHud(QPainter &p) {
 //   }
 // }
 
-void AnnotatedCameraWidget::drawSpeedWidget(QPainter &p, int x, int y, const QString &title, const QString &speedLimitStr, QColor &colorSpeed) {
+void AnnotatedCameraWidget::drawSpeedWidget(QPainter &p, int x, int y, const QString &title, const QString &speedLimitStr, QColor colorSpeed) {
     // Draw outer box + border to contain set speed and speed limit
     const int sign_margin = 12;
     const int us_sign_height = 186;
diff --git a/selfdrive/ui/qt/onroad.h b/selfdrive/ui/qt/onroad.h
index 0ff3837..7bd9b4a 100755
--- a/selfdrive/ui/qt/onroad.h
+++ b/selfdrive/ui/qt/onroad.h
@@ -97,7 +97,7 @@ public:
 
 private:
   void drawText(QPainter &p, int x, int y, const QString &text, int alpha = 255);
-  void drawSpeedWidget(QPainter &p, int x, int y, const QString &title, const QString &speedLimitStr, QColor &colorSpeed);
+  void drawSpeedWidget(QPainter &p, int x, int y, const QString &title, const QString &speedLimitStr, QColor colorSpeed);
 
   QVBoxLayout *main_layout;
   QPixmap dm_img;