diff --git a/tests/fdpassing.c b/tests/fdpassing.c
--- a/tests/fdpassing.c
+++ b/tests/fdpassing.c
@@ -17,6 +17,10 @@
    License along with this program; if not, see <http://www.gnu.org/licenses/>.
  */
 
+#ifdef HAVE_CONFIG_H
+#include <config.h>
+#endif
+
 #include <stdio.h>
 #include <stdlib.h>
 #include <string.h>
@@ -30,7 +34,6 @@
 #include "../src/assuan.h"
 #include "common.h"
 
-
 /*
 
        S E R V E R