1 files changed, 2 insertions, 6 deletions

diff --git a/src/lib/libcrypto/curve25519/curve25519_internal.h b/src/lib/libcrypto/curve25519/curve25519_internal.h
index 09306b9ce8..f80424a6b7 100644
--- a/src/lib/libcrypto/curve25519/curve25519_internal.h
+++ b/src/lib/libcrypto/curve25519/curve25519_internal.h
@@ -19,9 +19,7 @@
 
 #include <stdint.h>
 
-#if defined(__cplusplus)
-extern "C" {
-#endif
+__BEGIN_HIDDEN_DECLS
 
 /* fe means field element. Here the field is \Z/(2^255-19). An element t,
  * entries t[0]...t[9], represents the integer t[0]+2^26 t[1]+2^51 t[2]+2^77
@@ -95,8 +93,6 @@ void x25519_scalar_mult(uint8_t out[32], const uint8_t scalar[32],
 void x25519_scalar_mult_generic(uint8_t out[32], const uint8_t scalar[32],
     const uint8_t point[32]);
 
-#if defined(__cplusplus)
-}  /* extern C */
-#endif
+__END_HIDDEN_DECLS
 
 #endif  /* HEADER_CURVE25519_INTERNAL_H */