diff --git a/src/doc/unstable-book/src/library-features/llvm-asm.md b/src/doc/unstable-book/src/library-features/llvm-asm.md
index e07f716e56718..da01d9228f14e 100644
--- a/src/doc/unstable-book/src/library-features/llvm-asm.md
+++ b/src/doc/unstable-book/src/library-features/llvm-asm.md
@@ -86,7 +86,7 @@ llvm_asm!("xor %eax, %eax" ::: "eax");
 
 Input and output operands follow the same format: `:
 "constraints1"(expr1), "constraints2"(expr2), ..."`. Output operand
-expressions must be mutable lvalues, or not yet assigned:
+expressions must be mutable place, or not yet assigned:
 
 ```rust
 # #![feature(llvm_asm)]