diff --git a/common/board_r.c b/common/board_r.c
index 8e7a3ac74cd297c8f9ad2539650f1a94ab1f34da..ba9a68dc6691d445e1803a1ad6eed06e661e5cee 100644
--- a/common/board_r.c
+++ b/common/board_r.c
@@ -587,6 +587,7 @@ static int initr_doc(void)
 {
 	puts("DOC:   ");
 	doc_init();
+	return 0;
 }
 #endif