diff --git a/fips/fips.h b/fips/fips.h
index 1bedea4c7d6e9bc161f4b04a23270ff78e1ca350..44fd3a9dd84c515dc52b6baf10075901540238a9 100644
--- a/fips/fips.h
+++ b/fips/fips.h
@@ -266,6 +266,7 @@ const EVP_CIPHER *FIPS_evp_des_ede_cbc(void);
 const EVP_CIPHER *FIPS_evp_des_ede_cfb64(void);
 const EVP_CIPHER *FIPS_evp_des_ede_ecb(void);
 const EVP_CIPHER *FIPS_evp_des_ede_ofb(void);
+const EVP_CIPHER *FIPS_evp_enc_null(void);
 const EVP_MD *FIPS_evp_sha1(void);
 const EVP_MD *FIPS_evp_sha224(void);
 const EVP_MD *FIPS_evp_sha256(void);