1 files changed, 2 insertions, 0 deletions

diff --git a/trailer.h b/trailer.h
index 6d7f8c2a52..9c10026c35 100644
--- a/trailer.h
+++ b/trailer.h
@@ -3,6 +3,8 @@
 
 #include "list.h"
 
+struct strbuf;
+
 enum trailer_where {
 	WHERE_DEFAULT,
 	WHERE_END,