diff --git a/y2018/wpilib_interface.cc b/y2018/wpilib_interface.cc
index b644ca1..f204605 100644
--- a/y2018/wpilib_interface.cc
+++ b/y2018/wpilib_interface.cc
@@ -725,8 +725,10 @@
   virtual void Write() override {
     auto &queue = ::frc971::control_loops::drivetrain_queue.output;
     LOG_STRUCT(DEBUG, "will output", *queue);
-    drivetrain_left_victor_->SetSpeed(queue->left_voltage / 12.0);
-    drivetrain_right_victor_->SetSpeed(-queue->right_voltage / 12.0);
+    drivetrain_left_victor_->SetSpeed(
+        ::aos::Clip(queue->left_voltage, -12.0, 12.0) / 12.0);
+    drivetrain_right_victor_->SetSpeed(
+        ::aos::Clip(-queue->right_voltage, -12.0, 12.0) / 12.0);
   }
 
   virtual void Stop() override {