diff --git a/src/MySQL.jl b/src/MySQL.jl
index 92d62b8..2fc6eff 100644
--- a/src/MySQL.jl
+++ b/src/MySQL.jl
@@ -128,6 +128,7 @@ function setoptions!(mysql;
         passphrase::Union{AbstractString, Nothing}=nothing,
         ssl_verify_server_cert::Union{Bool, Nothing}=nothing,
         ssl_enforce::Union{Bool, Nothing}=nothing,
+        ssl_mode::Union{API.mysql_ssl_mode, Nothing}=nothing,
         default_auth::Union{AbstractString, Nothing}=nothing,
         connection_handler::Union{AbstractString, Nothing}=nothing,
         plugin_dir::Union{AbstractString, Nothing}=nothing,
@@ -199,6 +200,9 @@ function setoptions!(mysql;
     if ssl_crlpath !== nothing
         API.setoption(mysql, API.MYSQL_OPT_SSL_CRLPATH, ssl_crlpath)
     end
+    if ssl_mode !== nothing
+        API.setoption(mysql, API.MYSQL_OPT_SSL_MODE, ssl_mode)
+    end
     if passphrase !== nothing
         API.setoption(mysql, API.MARIADB_OPT_TLS_PASSPHRASE, passphrase)
     end
diff --git a/src/api/consts.jl b/src/api/consts.jl
index 0ea04f0..2c43ff6 100644
--- a/src/api/consts.jl
+++ b/src/api/consts.jl
@@ -140,6 +140,14 @@ end
     MYSQL_PROTOCOL_MEMORY
 end
 
+@enum mysql_ssl_mode begin
+    SSL_MODE_DISABLED
+    SSL_MODE_PREFERRED
+    SSL_MODE_REQUIRED
+    SSL_MODE_VERIFY_CA
+    SSL_MODE_VERIFY_IDENTITY
+end
+
 # Options to be passed to mysql_options API.
 @enum mysql_option begin
     MYSQL_OPT_CONNECT_TIMEOUT
@@ -212,9 +220,10 @@ end
     MARIADB_OPT_INTERACTIVE
     MARIADB_OPT_PROXY_HEADER
     MARIADB_OPT_IO_WAIT
+    MYSQL_OPT_SSL_MODE
 end
 
-const CUINTOPTS = Set([MYSQL_OPT_CONNECT_TIMEOUT, MYSQL_OPT_PROTOCOL, MYSQL_OPT_READ_TIMEOUT, MYSQL_OPT_WRITE_TIMEOUT])
+const CUINTOPTS = Set([MYSQL_OPT_CONNECT_TIMEOUT, MYSQL_OPT_PROTOCOL, MYSQL_OPT_READ_TIMEOUT, MYSQL_OPT_WRITE_TIMEOUT, MYSQL_OPT_SSL_MODE])
 const CULONGOPTS = Set([MYSQL_OPT_MAX_ALLOWED_PACKET, MYSQL_OPT_NET_BUFFER_LENGTH])
 const BOOLOPTS = Set([MYSQL_ENABLE_CLEARTEXT_PLUGIN, MYSQL_OPT_CAN_HANDLE_EXPIRED_PASSWORDS, MYSQL_OPT_LOCAL_INFILE, MYSQL_OPT_RECONNECT, MYSQL_REPORT_DATA_TRUNCATION, MYSQL_OPT_SSL_ENFORCE, MYSQL_OPT_SSL_VERIFY_SERVER_CERT])
 const STRINGOPTS = Set([MYSQL_DEFAULT_AUTH, MYSQL_OPT_BIND, MYSQL_OPT_SSL_CA, MYSQL_OPT_SSL_CAPATH, MYSQL_OPT_SSL_CERT, MYSQL_OPT_SSL_CIPHER, MYSQL_OPT_SSL_CRL, MYSQL_OPT_SSL_CRLPATH, MYSQL_OPT_SSL_KEY, MYSQL_OPT_TLS_VERSION, MYSQL_PLUGIN_DIR, MYSQL_READ_DEFAULT_FILE, MYSQL_READ_DEFAULT_GROUP, MYSQL_SERVER_PUBLIC_KEY, MYSQL_SET_CHARSET_DIR, MYSQL_SET_CHARSET_NAME, MYSQL_SHARED_MEMORY_BASE_NAME])