diff --git a/idea/src/org/jetbrains/jet/plugin/internal/codewindow/BytecodeToolWindow.java b/idea/src/org/jetbrains/jet/plugin/internal/codewindow/BytecodeToolWindow.java
index 458106f681e..783cb56193f 100644
--- a/idea/src/org/jetbrains/jet/plugin/internal/codewindow/BytecodeToolWindow.java
+++ b/idea/src/org/jetbrains/jet/plugin/internal/codewindow/BytecodeToolWindow.java
@@ -29,6 +29,7 @@ import com.intellij.openapi.progress.ProcessCanceledException;
 import com.intellij.openapi.project.Project;
 import com.intellij.openapi.util.Pair;
 import com.intellij.openapi.util.text.StringUtil;
+import com.intellij.openapi.wm.ToolWindow;
 import com.intellij.util.Alarm;
 import org.jetbrains.annotations.NotNull;
 import org.jetbrains.jet.OutputFile;