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-rw-r--r--src/doc/unstable-book/src/language-features/slice-patterns.md2
1 files changed, 1 insertions, 1 deletions
diff --git a/src/doc/unstable-book/src/language-features/slice-patterns.md b/src/doc/unstable-book/src/language-features/slice-patterns.md
index 00c81f03ba1..cdb74495884 100644
--- a/src/doc/unstable-book/src/language-features/slice-patterns.md
+++ b/src/doc/unstable-book/src/language-features/slice-patterns.md
@@ -17,7 +17,7 @@ matched against that pattern. For example:
 fn is_symmetric(list: &[u32]) -> bool {
     match list {
         &[] | &[_] => true,
-        &[x, ref inside.., y] if x == y => is_symmetric(inside),
+        &[x, ref inside @ .., y] if x == y => is_symmetric(inside),
         &[..] => false,
     }
 }