diff --git a/wpiunits/src/main/java/edu/wpi/first/units/UnitBuilder.java b/wpiunits/src/main/java/edu/wpi/first/units/UnitBuilder.java
index 1c1385439e..1ae185ad94 100644
--- a/wpiunits/src/main/java/edu/wpi/first/units/UnitBuilder.java
+++ b/wpiunits/src/main/java/edu/wpi/first/units/UnitBuilder.java
@@ -185,7 +185,11 @@ public final class UnitBuilder<U extends Unit<U>> {
     return toBase(x -> x * aggregation).fromBase(b -> b / aggregation);
   }
 
-  /** A functional interface for constructing new units without relying on reflection. */
+  /**
+   * A functional interface for constructing new units without relying on reflection.
+   *
+   * @param <U> the type of the unit
+   */
   @FunctionalInterface
   public interface UnitConstructorFunction<U extends Unit<U>> {
     /**