diff --git a/src/main/kotlin/sc/iview/SciView.kt b/src/main/kotlin/sc/iview/SciView.kt
index 173556ff..5e7d9257 100644
--- a/src/main/kotlin/sc/iview/SciView.kt
+++ b/src/main/kotlin/sc/iview/SciView.kt
@@ -188,7 +188,7 @@ class SciView : SceneryBase, CalibratedRealInterval<CalibratedAxis> {
     private lateinit var io: IOService
 
     @Parameter
-    private lateinit var eventService: EventService
+    internal lateinit var eventService: EventService
 
     @Parameter
     private lateinit var lutService: LUTService