diff --git a/docs/LangRef.html b/docs/LangRef.html
index 38229f55a11..c1f37e2b8fe 100644
--- a/docs/LangRef.html
+++ b/docs/LangRef.html
@@ -2520,8 +2520,8 @@ source-language caller.
 <p>
 The '<tt>llvm.prefetch</tt>' intrinsic is a hint to the code generator to insert
 a prefetch instruction if supported, otherwise it is a noop.  Prefetches have no
-behavior affect on the program, but can change the performance characteristics
-of the code.
+effect on the behavior of the program, but can change its performance
+characteristics.
 </p>
 
 <h5>Arguments:</h5>