diff --git a/src/effects.c b/src/effects.c
index a97a2ec..3988b04 100644
--- a/src/effects.c
+++ b/src/effects.c
@@ -5191,7 +5191,7 @@ int take_hit(int damage_type, int damage, cptr hit_from, int monspell)
 			}
 			else
 			{
-				char buf[10];
+				char buf[15];
 
 				if (p_ptr->inside_arena)
 #ifdef JP