diff --git a/main/src/main/scala/sbt/internal/LintUnused.scala b/main/src/main/scala/sbt/internal/LintUnused.scala
index 57485ae67..e2c2f29fc 100644
--- a/main/src/main/scala/sbt/internal/LintUnused.scala
+++ b/main/src/main/scala/sbt/internal/LintUnused.scala
@@ -31,6 +31,7 @@ object LintUnused {
       commands,
       crossScalaVersions,
       initialize,
+      lintUnusedKeysOnLoad,
       onLoad,
       onLoadMessage,
       onUnload,