diff --git a/src/secp256k1/src/scalar_4x64_impl.h b/src/secp256k1/src/scalar_4x64_impl.h
index ee75ad51e..192874529 100644
--- a/src/secp256k1/src/scalar_4x64_impl.h
+++ b/src/secp256k1/src/scalar_4x64_impl.h
@@ -2001,5 +2001,6 @@ static void secp256k1_scalar_chacha20(secp256k1_scalar *r1, secp256k1_scalar *r2
 #undef LE32
 
 #endif /* SECP256K1_SCALAR_REPR_IMPL_H */
+xxx
 #endif