diff --git a/jps/jps-plugin/test/org/jetbrains/kotlin/jps/build/classFilesComparison/classFilesComparison.kt b/jps/jps-plugin/test/org/jetbrains/kotlin/jps/build/classFilesComparison/classFilesComparison.kt
index 4025ae926fd..d9958f56881 100644
--- a/jps/jps-plugin/test/org/jetbrains/kotlin/jps/build/classFilesComparison/classFilesComparison.kt
+++ b/jps/jps-plugin/test/org/jetbrains/kotlin/jps/build/classFilesComparison/classFilesComparison.kt
@@ -53,7 +53,7 @@ fun getDirectoryString(dir: File, interestingPaths: List<String>): String {
         val listFiles = dir.listFiles()
         assertNotNull(listFiles)
 
-        val children = listFiles!!.sortedWith(compareBy ({ it.directory }, { it.name } ))
+        val children = listFiles!!.sortedWith(compareBy ({ it.isDirectory }, { it.name } ))
         for (child in children) {
             if (child.isDirectory()) {
                 p.println(child.name)