diff --git a/src/definitionGenerator.js b/src/definitionGenerator.js
index cd26404..4510900 100644
--- a/src/definitionGenerator.js
+++ b/src/definitionGenerator.js
@@ -259,6 +259,13 @@ class DefinitionGenerator {
             slashPath = `/${(event?.http?.path || event.httpApi?.path) ?? ""}`;
           }
 
+          const basePath = this.getBasePath();
+
+          if (basePath) {
+            // append the base path so server is just the pure domain
+            slashPath = `/${basePath}${slashPath}`;
+          }
+
           if (paths[slashPath]) {
             Object.assign(paths[slashPath], path);
           } else {
@@ -280,6 +287,22 @@ class DefinitionGenerator {
     }
   }
 
+  /**
+   * @description Retrieves the basePath value if the domain manager plugin is used, allowing the server URL to be just the plain domain. The `basePath` will be prepended to each Lambda HTTP path.
+   * @returns {string}
+   */
+  getBasePath() {
+    const plugins = this.serverless.service.plugins || [];
+
+    let basePath = "";
+
+    if (plugins.includes("serverless-domain-manager")) {
+      basePath = this.serverless.service.custom.basePath || "";
+    }
+
+    return basePath;
+  }
+
   createServers(servers) {
     const serverDoc = servers;
     const newServers = [];