diff --git a/src/map/log.h b/src/map/log.h
index 73a0117556..89869c2b4e 100644
--- a/src/map/log.h
+++ b/src/map/log.h
@@ -6,6 +6,7 @@
 
 //#include "map.h"
 struct map_session_data;
+struct block_list;
 struct mob_data;
 struct item;