diff --git a/llvm/docs/LangRef.html b/llvm/docs/LangRef.html
index 60777ade19a2..346f858520b6 100644
--- a/llvm/docs/LangRef.html
+++ b/llvm/docs/LangRef.html
@@ -738,8 +738,11 @@ a power of 2.
target-specific
sret
This indicates that the parameter specifies the address of a structure
- that is the return value of the function in the source program.
-
+ that is the return value of the function in the source program.
+ nounwind
+ This function attribute indicates that the function type does not use
+ the unwind instruction and does not allow stack unwinding to propagate
+ through it.