diff --git a/hw/9pfs/9p.c b/hw/9pfs/9p.c
index 8b001b9112..acfa7db4e1 100644
--- a/hw/9pfs/9p.c
+++ b/hw/9pfs/9p.c
@@ -201,8 +201,7 @@ void v9fs_path_free(V9fsPath *path)
 }
 
 
-void G_GNUC_PRINTF(2, 3)
-v9fs_path_sprintf(V9fsPath *path, const char *fmt, ...)
+void v9fs_path_sprintf(V9fsPath *path, const char *fmt, ...)
 {
     va_list ap;
 
diff --git a/hw/9pfs/9p.h b/hw/9pfs/9p.h
index 259ad32ed1..65cc45e344 100644
--- a/hw/9pfs/9p.h
+++ b/hw/9pfs/9p.h
@@ -456,7 +456,8 @@ static inline uint8_t v9fs_request_cancelled(V9fsPDU *pdu)
 void coroutine_fn v9fs_reclaim_fd(V9fsPDU *pdu);
 void v9fs_path_init(V9fsPath *path);
 void v9fs_path_free(V9fsPath *path);
-void v9fs_path_sprintf(V9fsPath *path, const char *fmt, ...);
+void G_GNUC_PRINTF(2, 3) v9fs_path_sprintf(V9fsPath *path, const char *fmt,
+                                           ...);
 void v9fs_path_copy(V9fsPath *dst, const V9fsPath *src);
 size_t v9fs_readdir_response_size(V9fsString *name);
 int v9fs_name_to_path(V9fsState *s, V9fsPath *dirpath,