diff --git a/jps/jps-plugin/test/org/jetbrains/kotlin/jps/incremental/AbstractProtoComparisonTest.kt b/jps/jps-plugin/test/org/jetbrains/kotlin/jps/incremental/AbstractProtoComparisonTest.kt
index 0a80f2626bc..07353e5ed9c 100644
--- a/jps/jps-plugin/test/org/jetbrains/kotlin/jps/incremental/AbstractProtoComparisonTest.kt
+++ b/jps/jps-plugin/test/org/jetbrains/kotlin/jps/incremental/AbstractProtoComparisonTest.kt
@@ -102,8 +102,8 @@ public abstract class AbstractProtoComparisonTest : UsefulTestCase() {
         )
 
         val diff = when {
-            newClassHeader.isCompatibleClassKind(),
-            newClassHeader.isCompatibleFileFacadeKind(),
+            newClassHeader.isCompatibleClassKind() ||
+            newClassHeader.isCompatibleFileFacadeKind() ||
             newClassHeader.isCompatibleMultifileClassPartKind() ->
                 difference(oldProto, newProto)
             else ->  {