diff --git a/crypto/err/openssl.txt b/crypto/err/openssl.txt
index 0f25aaf7431fcdcac9269edcaf93c66d0e49150d..04f48a5a10e4d7ab652208d4dec05e2077592d63 100644
--- a/crypto/err/openssl.txt
+++ b/crypto/err/openssl.txt
@@ -2301,6 +2301,7 @@ SSL_R_MISSING_RSA_CERTIFICATE:168:missing rsa certificate
 SSL_R_MISSING_RSA_ENCRYPTING_CERT:169:missing rsa encrypting cert
 SSL_R_MISSING_RSA_SIGNING_CERT:170:missing rsa signing cert
 SSL_R_MISSING_SIGALGS_EXTENSION:112:missing sigalgs extension
+SSL_R_MISSING_SIGNING_CERT:221:missing signing cert
 SSL_R_MISSING_SRP_PARAM:358:can't find SRP server param
 SSL_R_MISSING_SUPPORTED_GROUPS_EXTENSION:209:missing supported groups extension
 SSL_R_MISSING_TMP_DH_KEY:171:missing tmp dh key
diff --git a/include/openssl/sslerr.h b/include/openssl/sslerr.h
index 540bafff173caa0fed2499ea8125c2b4341b5e33..bc4c17e4d19dbef5d0ef0cd620d9b7076a6d1b0c 100644
--- a/include/openssl/sslerr.h
+++ b/include/openssl/sslerr.h
@@ -483,6 +483,7 @@ int ERR_load_SSL_strings(void);
 # define SSL_R_MISSING_RSA_ENCRYPTING_CERT                169
 # define SSL_R_MISSING_RSA_SIGNING_CERT                   170
 # define SSL_R_MISSING_SIGALGS_EXTENSION                  112
+# define SSL_R_MISSING_SIGNING_CERT                       221
 # define SSL_R_MISSING_SRP_PARAM                          358
 # define SSL_R_MISSING_SUPPORTED_GROUPS_EXTENSION         209
 # define SSL_R_MISSING_TMP_DH_KEY                         171
diff --git a/ssl/ssl_err.c b/ssl/ssl_err.c
index 0b82c0e94536d3e16c0b511773295df4232ecd0f..dc1d439b1b248acbe3739c3e515b546eed4241ba 100644
--- a/ssl/ssl_err.c
+++ b/ssl/ssl_err.c
@@ -767,6 +767,8 @@ static const ERR_STRING_DATA SSL_str_reasons[] = {
     "missing rsa signing cert"},
     {ERR_PACK(ERR_LIB_SSL, 0, SSL_R_MISSING_SIGALGS_EXTENSION),
     "missing sigalgs extension"},
+    {ERR_PACK(ERR_LIB_SSL, 0, SSL_R_MISSING_SIGNING_CERT),
+    "missing signing cert"},
     {ERR_PACK(ERR_LIB_SSL, 0, SSL_R_MISSING_SRP_PARAM),
     "can't find SRP server param"},
     {ERR_PACK(ERR_LIB_SSL, 0, SSL_R_MISSING_SUPPORTED_GROUPS_EXTENSION),