diff --git a/compiler/tests-common-new/tests/org/jetbrains/kotlin/test/services/impl/ModuleStructureExtractorImpl.kt b/compiler/tests-common-new/tests/org/jetbrains/kotlin/test/services/impl/ModuleStructureExtractorImpl.kt
index 3842cf57d23..e2724ea52a7 100644
--- a/compiler/tests-common-new/tests/org/jetbrains/kotlin/test/services/impl/ModuleStructureExtractorImpl.kt
+++ b/compiler/tests-common-new/tests/org/jetbrains/kotlin/test/services/impl/ModuleStructureExtractorImpl.kt
@@ -257,7 +257,7 @@ class ModuleStructureExtractorImpl(
             filesOfCurrentModule.add(
                 TestFile(
                     relativePath = filename,
-                    originalContent = linesOfCurrentFile.joinToString(separator = System.lineSeparator(), postfix = System.lineSeparator()),
+                    originalContent = linesOfCurrentFile.joinToString(separator = "\n", postfix = "\n"),
                     originalFile = currentTestDataFile,
                     startLineNumberInOriginalFile = startLineNumberOfCurrentFile,
                     isAdditional = false