1 files changed, 1 insertions, 0 deletions

diff --git a/src/lib/libcrypto/hmac/hmac.h b/src/lib/libcrypto/hmac/hmac.h
index 0364a1fcbd..294ab3b36a 100644
--- a/src/lib/libcrypto/hmac/hmac.h
+++ b/src/lib/libcrypto/hmac/hmac.h
@@ -98,6 +98,7 @@ unsigned char *HMAC(const EVP_MD *evp_md, const void *key, int key_len,
                     const unsigned char *d, int n, unsigned char *md,
                     unsigned int *md_len);
 
+void HMAC_CTX_set_flags(HMAC_CTX *ctx, unsigned long flags);
 
 #ifdef  __cplusplus
 }