diff --git a/libraries/stdlib/validator/src/test/kotlin/NoInternalVisibilityInStdLibTest.kt b/libraries/stdlib/validator/src/test/kotlin/NoInternalVisibilityInStdLibTest.kt
index b6a1d2bebb4..9ab64a7804b 100644
--- a/libraries/stdlib/validator/src/test/kotlin/NoInternalVisibilityInStdLibTest.kt
+++ b/libraries/stdlib/validator/src/test/kotlin/NoInternalVisibilityInStdLibTest.kt
@@ -75,7 +75,7 @@ class NoInternalVisibilityInStdLibTest {
             if (internalDescriptors.isEmpty()) return
 
             val byFile = internalDescriptors.groupBy { descriptor ->
-                DescriptorToSourceUtils.descriptorToDeclarations(descriptor).firstOrNull()?.getContainingFile() as JetFile
+                DescriptorToSourceUtils.getSourceFromDescriptor(descriptor)?.getContainingFile() as JetFile
             }
             val byPackage = byFile.keySet().groupBy { it.getPackageFqName() }