diff --git a/server/atom.c b/server/atom.c
index 90669cb..3ab8086 100644
--- a/server/atom.c
+++ b/server/atom.c
@@ -19,6 +19,9 @@
  * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
  */
 
+#include "config.h"
+#include "wine/port.h"
+
 #include <assert.h>
 #include <stdlib.h>
 #include <stdio.h>