diff --git a/tests/libtest/testutil.h b/tests/libtest/testutil.h
index 31e00ffe5e..18bd9e99cc 100644
--- a/tests/libtest/testutil.h
+++ b/tests/libtest/testutil.h
@@ -25,6 +25,9 @@
 
 #include "setup.h"
 
+#ifdef HAVE_SYS_TYPES_H
+#include <sys/types.h>
+#endif
 #ifdef HAVE_SYS_TIME_H
 #include <sys/time.h>
 #ifdef TIME_WITH_SYS_TIME