diff --git a/types/mongoose/index.d.ts b/types/mongoose/index.d.ts
index d8ffa046e9..723a88bdf8 100644
--- a/types/mongoose/index.d.ts
+++ b/types/mongoose/index.d.ts
@@ -326,6 +326,26 @@ declare module "mongoose" {
     /** How long driver keeps waiting for servers to come back up (default: Number.MAX_VALUE) */
     bufferMaxEntries?: number;
 
+    /** additional SSL configuration options */
+    /** Array of valid certificates either as Buffers or Strings */
+    sslCA?: ReadonlyArray<Buffer | string>;
+    /** Array of revocation certificates either as Buffers or Strings (needs to have a mongod server with ssl support, 2.4 or higher) */
+    sslCRL?: ReadonlyArray<Buffer | string>;
+    /** SSL certificate */
+    sslCert?: Buffer | string;
+    /** SSL private key */
+    sslKey?: Buffer | string;
+    /** SSL Certificate pass phrase */
+    sslPass?: Buffer | string;
+    /** Default: true; Server identity checking during SSL */
+    checkServerIdentity?: boolean | Function;
+    /** String containing the server name requested via TLS SNI. */
+    servername?: string;
+
+    /** Passed directly through to tls.createSecureContext. See https://nodejs.org/dist/latest-v9.x/docs/api/tls.html#tls_tls_createsecurecontext_options for more info. */
+    ciphers?: string;
+    ecdhCurve?: string;
+
     // TODO
     safe?: any;
     fsync?: any;
diff --git a/types/mongoose/mongoose-tests.ts b/types/mongoose/mongoose-tests.ts
index 244658ac9b..d6fbe3cd82 100644
--- a/types/mongoose/mongoose-tests.ts
+++ b/types/mongoose/mongoose-tests.ts
@@ -65,6 +65,25 @@ mongoose.Types.ObjectId;
 mongoose.Types.Decimal128;
 mongoose.version.toLowerCase();
 
+const sslConnections: {[key: string]: mongoose.Connection} = {
+  basic: mongoose.createConnection(connectUri, {ssl: true}),
+  customCA: mongoose.createConnection(
+    connectUri,
+    {
+      ssl: true,
+      sslCA: [new Buffer('ca string')],
+      sslCRL: [new Buffer('crl buffer')],
+      sslCert: 'ssl cert',
+      sslKey: new Buffer('ssl private key'),
+      sslPass: 'ssl password',
+      servername: 'localhost',
+      checkServerIdentity: true,
+      ciphers: 'ciphers',
+      ecdhCurve: 'ecdhCurve',
+    }
+  ),
+};
+
 /*
  * section collection.js
  * http://mongoosejs.com/docs/api.html#collection-js