diff --git a/plugins/performanceTesting/core/src/com/jetbrains/performancePlugin/commands/StoreHighlightingResultsCommand.kt b/plugins/performanceTesting/core/src/com/jetbrains/performancePlugin/commands/StoreHighlightingResultsCommand.kt
index ea7634c51483..8472326d8dfe 100644
--- a/plugins/performanceTesting/core/src/com/jetbrains/performancePlugin/commands/StoreHighlightingResultsCommand.kt
+++ b/plugins/performanceTesting/core/src/com/jetbrains/performancePlugin/commands/StoreHighlightingResultsCommand.kt
@@ -42,12 +42,15 @@ class StoreHighlightingResultsCommand(text: String, line: Int) : PlaybackCommand
       writeIntentReadAction {
         val psiFile = PsiDocumentManager.getInstance(project).getPsiFile(editor.document)
         require(psiFile != null)
+
+        var description: String
         DaemonCodeAnalyzerImpl.getHighlights(editor.document, null, project).forEach { highlight ->
           assert(editor.document.textLength > highlight.actualStartOffset) {
             "Highlight start offset ${editor.document.textLength} less than document text length ${highlight.actualStartOffset}"
           }
+          description = if (highlight.description == null) "" else highlight.description.replace("\n", "")
           fileForStoringHighlights
-            .appendText("${highlight.severity}☆${highlight.description}☆${editor.document.getLineNumber(highlight.actualStartOffset)}☆${highlight.toolId}" + "\n")
+            .appendText("${highlight.severity}☆$description☆${editor.document.getLineNumber(highlight.actualStartOffset)}☆${highlight.toolId}" + "\n")
         }
       }
     }