1 files changed, 1 insertions, 1 deletions
diff --git a/src/libsyntax/ext/cfg.rs b/src/libsyntax/ext/cfg.rs
index 6a2209bf0ae..8af7fb7b268 100644
--- a/src/libsyntax/ext/cfg.rs
+++ b/src/libsyntax/ext/cfg.rs
@@ -29,7 +29,7 @@ pub fn expand_cfg<'cx>(cx: &mut ExtCtxt,
     let mut p = cx.new_parser_from_tts(tts);
     let cfg = p.parse_meta_item();
 
-    if !p.eat(&token::Eof) {
+    if !panictry!(p.eat(&token::Eof)){
         cx.span_err(sp, "expected 1 cfg-pattern");
         return DummyResult::expr(sp);
     }