diff --git a/app/src/main/java/com/dragon/ide/ui/activities/EventEditorActivity.java b/app/src/main/java/com/dragon/ide/ui/activities/EventEditorActivity.java
index 8f6738f..4a8e04a 100644
--- a/app/src/main/java/com/dragon/ide/ui/activities/EventEditorActivity.java
+++ b/app/src/main/java/com/dragon/ide/ui/activities/EventEditorActivity.java
@@ -550,6 +550,9 @@ public boolean onDrag(View v, DragEvent dragEvent) {
                     attachableBlockView.setEnableEdit(true);
                     attachableBlockView.setBlock(blockDefaultView.getBlock());
                   }
+                  if (index == 0) {
+                    index = 1;
+                  }
                   ((ViewGroup) v).addView(attachableBlockView, index);
                   Utils.setMargins(attachableBlockView, -16, 0, 0, 0);
                 }