diff --git a/include/trace/events/f2fs.h b/include/trace/events/f2fs.h
index 795698925d20..ddd76a214a11 100644
--- a/include/trace/events/f2fs.h
+++ b/include/trace/events/f2fs.h
@@ -150,6 +150,9 @@ TRACE_DEFINE_ENUM(CP_TRIMMED);
 		{ CP_SPEC_LOG_NUM,	"log type is 2" },		\
 		{ CP_RECOVER_DIR,	"dir needs recovery" })
 
+struct f2fs_sb_info;
+struct f2fs_io_info;
+struct extent_info;
 struct victim_sel_policy;
 struct f2fs_map_blocks;