diff --git a/platform/diff-impl/src/com/intellij/diff/util/DiffDividerDrawUtil.java b/platform/diff-impl/src/com/intellij/diff/util/DiffDividerDrawUtil.java
index df381c067ab6..1ec8502f8b05 100644
--- a/platform/diff-impl/src/com/intellij/diff/util/DiffDividerDrawUtil.java
+++ b/platform/diff-impl/src/com/intellij/diff/util/DiffDividerDrawUtil.java
@@ -198,6 +198,7 @@ public class DiffDividerDrawUtil {
   @NotNull
   private static LineRange getVisibleInterval(Editor editor) {
     Rectangle area = editor.getScrollingModel().getVisibleArea();
+    if (area.height < 0) return new LineRange(0, 0);
     LogicalPosition position1 = editor.xyToLogicalPosition(new Point(0, area.y));
     LogicalPosition position2 = editor.xyToLogicalPosition(new Point(0, area.y + area.height));
     return new LineRange(position1.line, position2.line);