diff --git a/platform/lang-impl/src/com/intellij/analysis/problemsView/toolWindow/ProblemsViewPanel.java b/platform/lang-impl/src/com/intellij/analysis/problemsView/toolWindow/ProblemsViewPanel.java
index 90285e72df57..5c5e95b249ee 100644
--- a/platform/lang-impl/src/com/intellij/analysis/problemsView/toolWindow/ProblemsViewPanel.java
+++ b/platform/lang-impl/src/com/intellij/analysis/problemsView/toolWindow/ProblemsViewPanel.java
@@ -26,6 +26,7 @@ import com.intellij.ui.border.CustomLineBorder;
 import com.intellij.ui.content.Content;
 import com.intellij.ui.content.ContentManager;
 import com.intellij.ui.preview.DescriptorPreview;
+import com.intellij.ui.preview.DescriptorSupplier;
 import com.intellij.ui.tree.AsyncTreeModel;
 import com.intellij.ui.tree.RestoreSelectionListener;
 import com.intellij.ui.treeStructure.Tree;
@@ -370,7 +371,8 @@ public class ProblemsViewPanel extends OnePixelSplitter implements Disposable, D
   }
 
   protected void updatePreview() {
-    myPreview.open(isNotNullAndSelected(getShowPreview()) ? getSelectedNode() : null);
+    DescriptorSupplier supplier = isNotNullAndSelected(getShowPreview()) ? getSelectedNode() : null;
+    myPreview.open(supplier == null ? null : supplier.getDescriptor());
   }
 
   private void invokeLater(@NotNull Runnable runnable) {
diff --git a/platform/lang-impl/src/com/intellij/ui/preview/DescriptorPreview.kt b/platform/lang-impl/src/com/intellij/ui/preview/DescriptorPreview.kt
index c04025d90b89..82224ad3de87 100644
--- a/platform/lang-impl/src/com/intellij/ui/preview/DescriptorPreview.kt
+++ b/platform/lang-impl/src/com/intellij/ui/preview/DescriptorPreview.kt
@@ -21,8 +21,8 @@ class DescriptorPreview(val splitter: Splitter, val editable: Boolean, val id: C
 
   fun editor() = editor
   fun close() = open(null)
-  fun open(supplier: DescriptorSupplier?) {
-    this.descriptor = supplier?.descriptor
+  fun open(descriptor: OpenFileDescriptor?) {
+    this.descriptor = descriptor
   }
 
   private var editor: Editor? by observable(null) { _, oldEditor, newEditor ->