diff --git a/repos/hello_tutorial/run/hello.run b/repos/hello_tutorial/run/hello.run
index 13a2b10850..e3fe69da46 100644
--- a/repos/hello_tutorial/run/hello.run
+++ b/repos/hello_tutorial/run/hello.run
@@ -2,7 +2,7 @@
 # Build
 #
 
-build { core init hello }
+build { core init timer hello }
 
 create_boot_directory
 
@@ -49,7 +49,7 @@ install_config {
 # Boot image
 #
 
-build_boot_image { core ld.lib.so init hello_client hello_server }
+build_boot_image { core ld.lib.so init timer hello_client hello_server }
 
 append qemu_args " -nographic "