diff --git a/python/educational-core/src/com/jetbrains/edu/EduAnswerPlaceholderPainter.java b/python/educational-core/src/com/jetbrains/edu/EduAnswerPlaceholderPainter.java
index 137062810ec9..da2972c440c3 100644
--- a/python/educational-core/src/com/jetbrains/edu/EduAnswerPlaceholderPainter.java
+++ b/python/educational-core/src/com/jetbrains/edu/EduAnswerPlaceholderPainter.java
@@ -51,7 +51,7 @@ public class EduAnswerPlaceholderPainter {
 
   public static void createGuardedBlock(Editor editor, List<RangeMarker> blocks, int start, int end) {
     RangeHighlighter rh = editor.getMarkupModel()
-      .addRangeHighlighter(start, end, HighlighterLayer.LAST + 1, null, HighlighterTargetArea.EXACT_RANGE);
+      .addRangeHighlighter(start, end, PLACEHOLDERS_LAYER, null, HighlighterTargetArea.EXACT_RANGE);
     blocks.add(rh);
   }