diff --git a/include/llvm/ADT/SparseBitVector.h b/include/llvm/ADT/SparseBitVector.h
index 6ffc6edcfc7..3455f51050b 100644
--- a/include/llvm/ADT/SparseBitVector.h
+++ b/include/llvm/ADT/SparseBitVector.h
@@ -405,6 +405,8 @@ class SparseBitVector {
           WordNumber = (NextSetBitNumber % ElementSize) / BITWORD_SIZE;
           Bits = Iter->word(WordNumber);
           Bits >>= NextSetBitNumber % BITWORD_SIZE;
+	  BitNumber = Iter->index() * ElementSize;
+	  BitNumber += NextSetBitNumber;
         }
       }
     }