diff --git a/clients/nested.c b/clients/nested.c
index e78f08c396f4311ddade9b83230cf4198caca692..72aab151a071dc43082c0bfb85e501cc15e5ed60 100644
--- a/clients/nested.c
+++ b/clients/nested.c
@@ -47,6 +47,7 @@
 #include <wayland-server.h>
 
 #include "shared/helpers.h"
+#include "shared/xalloc.h"
 #include "window.h"
 
 #ifndef EGL_WL_create_wayland_buffer_from_image