diff --git a/project/Build.scala b/project/Build.scala
index a7be508ce11a..b67974f4405d 100644
--- a/project/Build.scala
+++ b/project/Build.scala
@@ -301,6 +301,7 @@ object Build {
 
     // Avoid various sbt craziness involving classloaders and parallelism
     run / fork := true,
+    run / connectInput := true,
     Test / fork := true,
     Test / parallelExecution := false,