diff --git a/express-serve-static-core/express-serve-static-core.d.ts b/express-serve-static-core/express-serve-static-core.d.ts
index 745b0e6ab2..93551ffece 100644
--- a/express-serve-static-core/express-serve-static-core.d.ts
+++ b/express-serve-static-core/express-serve-static-core.d.ts
@@ -121,7 +121,7 @@ declare module "express-serve-static-core" {
         httpOnly?: boolean;
         path?: string;
         domain?: string;
-        secure?: boolean;
+        secure?: boolean | 'auto';
     }
 
     interface Errback { (err: Error): void; }
@@ -199,7 +199,7 @@ declare module "express-serve-static-core" {
 
         /**
             * Returns the first accepted charset of the specified character sets,
-            * based on the request’s Accept-Charset HTTP header field.
+            * based on the request's Accept-Charset HTTP header field.
             * If none of the specified charsets is accepted, returns false.
             *
             * For more information, or if you have issues or concerns, see accepts.
@@ -212,7 +212,7 @@ declare module "express-serve-static-core" {
 
         /**
             * Returns the first accepted encoding of the specified encodings,
-            * based on the request’s Accept-Encoding HTTP header field.
+            * based on the request's Accept-Encoding HTTP header field.
             * If none of the specified encodings is accepted, returns false.
             *
             * For more information, or if you have issues or concerns, see accepts.
@@ -225,7 +225,7 @@ declare module "express-serve-static-core" {
 
         /**
             * Returns the first accepted language of the specified languages,
-            * based on the request’s Accept-Language HTTP header field.
+            * based on the request's Accept-Language HTTP header field.
             * If none of the specified languages is accepted, returns false.
             *
             * For more information, or if you have issues or concerns, see accepts.
diff --git a/express-session/express-session-tests.ts b/express-session/express-session-tests.ts
index 1e1f909b14..0b8460214f 100644
--- a/express-session/express-session-tests.ts
+++ b/express-session/express-session-tests.ts
@@ -6,7 +6,8 @@ import session = require('express-session');
 var app = express();
 
 app.use(session({
-  secret: 'keyboard cat'
+  secret: 'keyboard cat',
+  cookie: { secure: 'auto' }
 }));
 app.use(session({
   secret: 'keyboard cat',