diff --git a/y2019/control_loops/python/BUILD b/y2019/control_loops/python/BUILD
index 9dddf12..111bb79 100644
--- a/y2019/control_loops/python/BUILD
+++ b/y2019/control_loops/python/BUILD
@@ -67,6 +67,7 @@
         ":python_init",
         "//external:python-gflags",
         "//external:python-glog",
+        "//frc971/control_loops/python:controls",
         "//frc971/control_loops/python:linear_system",
     ],
 )