diff --git a/app/src/main/java/com/iqball/app/page/VisualizerPage.kt b/app/src/main/java/com/iqball/app/page/VisualizerPage.kt
index bc9e6ff..f85787a 100644
--- a/app/src/main/java/com/iqball/app/page/VisualizerPage.kt
+++ b/app/src/main/java/com/iqball/app/page/VisualizerPage.kt
@@ -91,7 +91,7 @@ fun VisualizerPage(
         val parentId = getParent(stepsTree, selectedStepId)?.id
         Pair(
             getStepContent(selectedStepId),
-            if (parentId == null) null else getStepContent(parentId)
+            parentId?.let { getStepContent(it) }
         )
     }