diff --git a/wpilibj/src/main/java/edu/wpi/first/wpilibj/Controller.java b/wpilibj/src/main/java/edu/wpi/first/wpilibj/Controller.java
index fa2c4dcb17..32fc7c3cfb 100644
--- a/wpilibj/src/main/java/edu/wpi/first/wpilibj/Controller.java
+++ b/wpilibj/src/main/java/edu/wpi/first/wpilibj/Controller.java
@@ -12,7 +12,7 @@ package edu.wpi.first.wpilibj;
  * and there variants, but this includes anything that is controlling an actuator in a separate
  * thread.
  */
-interface Controller {
+public interface Controller {
   /**
    * Allows the control loop to run.
    */