diff --git a/platform/usageView/src/com/intellij/usages/UsageInfo2UsageAdapter.java b/platform/usageView/src/com/intellij/usages/UsageInfo2UsageAdapter.java
index 299e66e4d6d2..91b0b32cee4b 100644
--- a/platform/usageView/src/com/intellij/usages/UsageInfo2UsageAdapter.java
+++ b/platform/usageView/src/com/intellij/usages/UsageInfo2UsageAdapter.java
@@ -328,7 +328,10 @@ public class UsageInfo2UsageAdapter implements UsageInModule,
     if (containingFile == null && oContainingFile == null || !Comparing.equal(containingFile, oContainingFile)) {
       return 0;
     }
-    return getFirstSegment().getStartOffset() - o.getFirstSegment().getStartOffset();
+    Segment s1 = getFirstSegment();
+    Segment s2 = o.getFirstSegment();
+    if (s1 == null || s2 == null) return 0;
+    return s1.getStartOffset() - s2.getStartOffset();
   }
 
   public void rename(String newName) throws IncorrectOperationException {