1 files changed, 11 insertions, 2 deletions
diff --git a/src/config.ts b/src/config.ts
index 70463fee7..937499923 100644
--- a/src/config.ts
+++ b/src/config.ts
@@ -12,11 +12,18 @@ function validateConfig(config: any): void {
   if (typeof config !== 'object') throw new Error(`[astro config] Expected object, received ${typeof config}`);
 
   // strings
-  for (const key of ['projectRoot', 'astroRoot', 'dist', 'public']) {
-    if (config[key] && typeof config[key] !== 'string') {
+  for (const key of ['projectRoot', 'astroRoot', 'dist', 'public', 'site']) {
+    if (config[key] !== undefined && config[key] !== null && typeof config[key] !== 'string') {
       throw new Error(`[astro config] ${key}: ${JSON.stringify(config[key])}\n  Expected string, received ${type(config[key])}.`);
     }
   }
+
+  // booleans
+  for (const key of ['sitemap']) {
+    if (config[key] !== undefined && config[key] !== null && typeof config[key] !== 'boolean') {
+      throw new Error(`[astro config] ${key}: ${JSON.stringify(config[key])}\n  Expected boolean, received ${type(config[key])}.`);
+    }
+  }
 }
 
 /** Set default config values */
@@ -28,6 +35,8 @@ function configDefaults(userConfig?: any): any {
   if (!config.dist) config.dist = './_site';
   if (!config.public) config.public = './public';
 
+  if (typeof config.sitemap === 'undefined') config.sitemap = true;
+
   return config;
 }