diff --git a/build.sbt b/build.sbt
index 7106f870..3924f201 100644
--- a/build.sbt
+++ b/build.sbt
@@ -7,7 +7,7 @@ organization := "io.opentargets"
 
 version := "latest"
 
-scalacOptions ++= Seq("-feature", "-explain")
+scalacOptions ++= Seq("-feature", "-explain", "-Wunused:imports")
 
 lazy val root = (project in file(".")).enablePlugins(PlayScala, PlayLogback)