diff --git a/library/Icinga/Application/EmbeddedWeb.php b/library/Icinga/Application/EmbeddedWeb.php
index 0dd8b5d5c..7ba2ba73e 100644
--- a/library/Icinga/Application/EmbeddedWeb.php
+++ b/library/Icinga/Application/EmbeddedWeb.php
@@ -27,7 +27,9 @@ class EmbeddedWeb extends ApplicationBootstrap
      */
     protected function bootstrap()
     {
-        return $this->loadConfig()
+        return $this
+            ->setupZendAutoloader()
+            ->loadConfig()
             ->setupErrorHandling()
             ->setupTimezone()
             ->setupModuleManager()
diff --git a/library/Icinga/Application/Web.php b/library/Icinga/Application/Web.php
index b793fd68a..f227df247 100644
--- a/library/Icinga/Application/Web.php
+++ b/library/Icinga/Application/Web.php
@@ -90,6 +90,7 @@ class Web extends ApplicationBootstrap
     protected function bootstrap()
     {
         return $this
+            ->setupZendAutoloader()
             ->setupLogging()
             ->setupErrorHandling()
             ->loadConfig()