diff --git a/doc/mismatch.qbk b/doc/mismatch.qbk
index cf74293..ff56398 100644
--- a/doc/mismatch.qbk
+++ b/doc/mismatch.qbk
@@ -60,7 +60,7 @@ mismatch ( c1.end(),       c1.end(),       c2.end(),   c2.end()) --> <c1.end(),
 
 [heading Complexity]
 
-Both of the variants of `mismatch` run in ['O(N)] (linear) time; that is, they compare against each element in the list once. If the sequence is found to be equal at any point, the routine will terminate immediately, without examining the rest of the elements.
+Both of the variants of `mismatch` run in ['O(N)] (linear) time; that is, they compare against each element in the list once. If the sequence is found to be not equal at any point, the routine will terminate immediately, without examining the rest of the elements.
 
 [heading Exception Safety]