diff --git a/tests/misc/netclock-replay.c b/tests/misc/netclock-replay.c
index 531bbe7381..54eeb31f5b 100644
--- a/tests/misc/netclock-replay.c
+++ b/tests/misc/netclock-replay.c
@@ -18,6 +18,10 @@
  * Boston, MA 02110-1301, USA.
  */
 
+#ifdef HAVE_CONFIG_H
+#include "config.h"
+#endif
+
 #include <stdio.h>
 
 /* We need the internal netclock estimation function to (re)run the code on