diff --git a/Source/cmAlgorithms.h b/Source/cmAlgorithms.h
index a9960880fb..dc4f2758a4 100644
--- a/Source/cmAlgorithms.h
+++ b/Source/cmAlgorithms.h
@@ -275,7 +275,6 @@ typename Range::const_iterator cmRemoveDuplicates(Range& r)
     {
     return r.end();
     }
-  std::sort(indices.begin(), indices.end());
   return cmRemoveIndices(r, indices);
 }