diff --git a/libguile/struct.c b/libguile/struct.c
index 94b431853..46b3f48fc 100644
--- a/libguile/struct.c
+++ b/libguile/struct.c
@@ -39,8 +39,10 @@
  * whether to permit this exception to apply to your modifications.
  * If you do not wish that, delete this exception notice.  */
 
-
 
+#if HAVE_CONFIG_H
+#  include <config.h>
+#endif
 
 #include "libguile/_scm.h"
 #include "libguile/chars.h"