Parse async blocks as Expr::Async
diff --git a/src/lib.rs b/src/lib.rs
index 9f92989..b4d2c5c 100644
--- a/src/lib.rs
+++ b/src/lib.rs
@@ -334,12 +334,12 @@
 mod expr;
 #[cfg(any(feature = "full", feature = "derive"))]
 pub use expr::{
-    Expr, ExprArray, ExprAssign, ExprAssignOp, ExprBinary, ExprBlock, ExprBox, ExprBreak, ExprCall,
-    ExprCast, ExprClosure, ExprContinue, ExprField, ExprForLoop, ExprGroup, ExprIf, ExprIfLet,
-    ExprInPlace, ExprIndex, ExprLit, ExprLoop, ExprMacro, ExprMatch, ExprMethodCall, ExprParen,
-    ExprPath, ExprRange, ExprReference, ExprRepeat, ExprReturn, ExprStruct, ExprTry, ExprTryBlock,
-    ExprTuple, ExprType, ExprUnary, ExprUnsafe, ExprVerbatim, ExprWhile, ExprWhileLet, ExprYield,
-    Index, Member,
+    Expr, ExprArray, ExprAssign, ExprAssignOp, ExprAsync, ExprBinary, ExprBlock, ExprBox,
+    ExprBreak, ExprCall, ExprCast, ExprClosure, ExprContinue, ExprField, ExprForLoop, ExprGroup,
+    ExprIf, ExprIfLet, ExprInPlace, ExprIndex, ExprLit, ExprLoop, ExprMacro, ExprMatch,
+    ExprMethodCall, ExprParen, ExprPath, ExprRange, ExprReference, ExprRepeat, ExprReturn,
+    ExprStruct, ExprTry, ExprTryBlock, ExprTuple, ExprType, ExprUnary, ExprUnsafe, ExprVerbatim,
+    ExprWhile, ExprWhileLet, ExprYield, Index, Member,
 };
 
 #[cfg(feature = "full")]