diff --git a/src/server/server.ts b/src/server/server.ts
index c1f7b86680383..79dc4ce1a298d 100644
--- a/src/server/server.ts
+++ b/src/server/server.ts
@@ -537,7 +537,8 @@ namespace ts.server {
                 canUseEvents,
                 globalPlugins: options.globalPlugins,
                 pluginProbeLocations: options.pluginProbeLocations,
-                allowLocalPluginLoads: options.allowLocalPluginLoads
+                allowLocalPluginLoads: options.allowLocalPluginLoads,
+                typesMapLocation,
             });
 
             this.eventPort = eventPort;
diff --git a/src/server/session.ts b/src/server/session.ts
index 1999360e34b06..74cb004bc8c96 100644
--- a/src/server/session.ts
+++ b/src/server/session.ts
@@ -300,6 +300,7 @@ namespace ts.server {
         globalPlugins?: ReadonlyArray<string>;
         pluginProbeLocations?: ReadonlyArray<string>;
         allowLocalPluginLoads?: boolean;
+        typesMapLocation?: string;
     }
 
     export class Session implements EventSender {
@@ -354,7 +355,8 @@ namespace ts.server {
                 eventHandler: this.eventHandler,
                 globalPlugins: opts.globalPlugins,
                 pluginProbeLocations: opts.pluginProbeLocations,
-                allowLocalPluginLoads: opts.allowLocalPluginLoads
+                allowLocalPluginLoads: opts.allowLocalPluginLoads,
+                typesMapLocation: opts.typesMapLocation,
             };
             this.projectService = new ProjectService(settings);
             this.gcTimer = new GcTimer(this.host, /*delay*/ 7000, this.logger);
diff --git a/tests/baselines/reference/api/tsserverlibrary.d.ts b/tests/baselines/reference/api/tsserverlibrary.d.ts
index 5f64bd02ea0d1..785c5620e6d1a 100644
--- a/tests/baselines/reference/api/tsserverlibrary.d.ts
+++ b/tests/baselines/reference/api/tsserverlibrary.d.ts
@@ -7259,6 +7259,7 @@ declare namespace ts.server {
         globalPlugins?: ReadonlyArray<string>;
         pluginProbeLocations?: ReadonlyArray<string>;
         allowLocalPluginLoads?: boolean;
+        typesMapLocation?: string;
     }
     class Session implements EventSender {
         private readonly gcTimer;