diff --git a/y2020/control_loops/drivetrain/localizer_test.cc b/y2020/control_loops/drivetrain/localizer_test.cc
index f0bcd88..91b5505 100644
--- a/y2020/control_loops/drivetrain/localizer_test.cc
+++ b/y2020/control_loops/drivetrain/localizer_test.cc
@@ -91,7 +91,7 @@
   return locations;
 }
 
-constexpr std::chrono::seconds kPiTimeOffset(-10);
+constexpr std::chrono::seconds kPiTimeOffset(10);
 }  // namespace
 
 namespace chrono = std::chrono;