diff --git a/SConstruct b/SConstruct
index c6fefc7598..d9d05f7940 100644
--- a/SConstruct
+++ b/SConstruct
@@ -165,8 +165,8 @@ env = Environment(
     "-g",
     "-fPIC",
     "-O2",
-    "-Werror",
     "-Wunused",
+    "-Werror",
     "-Wshadow",
     "-Wno-unknown-warning-option",
     "-Wno-deprecated-register",
diff --git a/selfdrive/ui/qt/maps/map.cc b/selfdrive/ui/qt/maps/map.cc
index 49428e4114..c3bb8d9df1 100644
--- a/selfdrive/ui/qt/maps/map.cc
+++ b/selfdrive/ui/qt/maps/map.cc
@@ -230,10 +230,8 @@ void MapWindow::initializeGL() {
 }
 
 void MapWindow::paintGL() {
-  double t = millis_since_boot();
   if (!isVisible() || m_map.isNull()) return;
   m_map->render();
-  double e = millis_since_boot() - t;
 }
 
 void MapWindow::clearRoute() {