diff --git a/llvm/include/llvm/ADT/SparseBitVector.h b/llvm/include/llvm/ADT/SparseBitVector.h
index 7151af6146e6e..3fec695c6e461 100644
--- a/llvm/include/llvm/ADT/SparseBitVector.h
+++ b/llvm/include/llvm/ADT/SparseBitVector.h
@@ -152,7 +152,7 @@ template <unsigned ElementSize = 128> struct SparseBitVectorElement {
     unsigned WordPos = Curr / BITWORD_SIZE;
     unsigned BitPos = Curr % BITWORD_SIZE;
     BitWord Copy = Bits[WordPos];
-    assert(WordPos <= BITWORDS_PER_ELEMENT
+    assert(WordPos < BITWORDS_PER_ELEMENT
            && "Word Position outside of element");
 
     // Mask off previous bits.