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-rw-r--r--src/libcore/hash/sip.rs1
1 files changed, 1 insertions, 0 deletions
diff --git a/src/libcore/hash/sip.rs b/src/libcore/hash/sip.rs
index e10f5a9fed1..628c1897f6e 100644
--- a/src/libcore/hash/sip.rs
+++ b/src/libcore/hash/sip.rs
@@ -195,6 +195,7 @@ impl Writer for SipState {
     }
 }
 
+#[stable]
 impl Clone for SipState {
     #[inline]
     fn clone(&self) -> SipState {