diff --git a/plugins/kotlin/idea/tests/test/org/jetbrains/kotlin/asJava/classes/UltraLightChecker.kt b/plugins/kotlin/idea/tests/test/org/jetbrains/kotlin/asJava/classes/UltraLightChecker.kt
index d5698126cd33..b4d4f22027e5 100644
--- a/plugins/kotlin/idea/tests/test/org/jetbrains/kotlin/asJava/classes/UltraLightChecker.kt
+++ b/plugins/kotlin/idea/tests/test/org/jetbrains/kotlin/asJava/classes/UltraLightChecker.kt
@@ -34,7 +34,11 @@ object UltraLightChecker {
 
     fun checkByJavaFile(testDataPath: String, lightClasses: List<PsiClass>) {
         val expectedTextFile = getJavaFileForTest(testDataPath)
-        val renderedResult = renderLightClasses(testDataPath, lightClasses)
+        val renderedResult = renderLightClasses(
+            testDataPath,
+            lightClasses.sortedBy { it.qualifiedName ?: it.name.toString() },
+        )
+
         KotlinTestUtils.assertEqualsToFile(expectedTextFile, renderedResult)
     }