diff --git a/glib/tests/thread.c b/glib/tests/thread.c
index 2c7c741c3..a614c2792 100644
--- a/glib/tests/thread.c
+++ b/glib/tests/thread.c
@@ -22,9 +22,13 @@
 
 #include <config.h>
 
+#ifdef HAVE_SYS_TIME_H
 #include <sys/time.h>
+#endif
 #include <sys/types.h>
+#ifdef HAVE_UNISTD_H
 #include <unistd.h>
+#endif
 
 #include <glib.h>