diff --git a/platform/vcs-log/graph/src/com/intellij/vcs/log/graph/impl/facade/FilteredController.kt b/platform/vcs-log/graph/src/com/intellij/vcs/log/graph/impl/facade/FilteredController.kt
index 0d24ab52de40..37ec44bb172a 100644
--- a/platform/vcs-log/graph/src/com/intellij/vcs/log/graph/impl/facade/FilteredController.kt
+++ b/platform/vcs-log/graph/src/com/intellij/vcs/log/graph/impl/facade/FilteredController.kt
@@ -9,10 +9,10 @@ import com.intellij.vcs.log.graph.utils.DfsWalk
 import com.intellij.vcs.log.graph.utils.LinearGraphUtils
 import com.intellij.vcs.log.graph.utils.UnsignedBitSet
 
-open class FilteredController(delegateLinearGraphController: LinearGraphController,
-                              permanentGraphInfo: PermanentGraphInfo<*>,
-                              matchedIds: Set<Int>,
-                              visibleHeadsIds: Set<Int>? = null) :
+class FilteredController(delegateLinearGraphController: LinearGraphController,
+                         permanentGraphInfo: PermanentGraphInfo<*>,
+                         matchedIds: Set<Int>,
+                         visibleHeadsIds: Set<Int>? = null) :
   CascadeController(delegateLinearGraphController, permanentGraphInfo) {
 
   val collapsedGraph: CollapsedGraph
diff --git a/platform/vcs-log/impl/test/com/intellij/vcs/log/history/FileHistoryTest.kt b/platform/vcs-log/impl/test/com/intellij/vcs/log/history/FileHistoryTest.kt
index 29b7010320b1..cd1a1ec943e6 100644
--- a/platform/vcs-log/impl/test/com/intellij/vcs/log/history/FileHistoryTest.kt
+++ b/platform/vcs-log/impl/test/com/intellij/vcs/log/history/FileHistoryTest.kt
@@ -25,7 +25,7 @@ class FileHistoryTest {
   fun LinearGraph.assert(startCommit: Int, startPath: FilePath, fileNamesData: FileHistoryData, result: TestGraphBuilder.() -> Unit) {
     val permanentGraphInfo = TestPermanentGraphInfo(this)
     val baseController = BaseController(permanentGraphInfo)
-    val filteredController = object : FilteredController(baseController, permanentGraphInfo, fileNamesData.getCommits()) {}
+    val filteredController = FilteredController(baseController, permanentGraphInfo, fileNamesData.getCommits())
 
     val historyBuilder = FileHistoryBuilder(startCommit, startPath, fileNamesData, FileHistory.EMPTY)
     historyBuilder.accept(filteredController, permanentGraphInfo)