diff --git a/Makefile b/Makefile
index 8fec75f..7e88eb9 100644
--- a/Makefile
+++ b/Makefile
@@ -12,7 +12,7 @@ DEPENDS:=$(OBJECTS:.o=.d)
 INCLUDE+=include
 INCLUDE:=$(INCLUDE:%=-I%)
 
-COMMON+=-fsanitize=address
+#COMMON+=-fsanitize=address
 
 CFLAGS+=$(COMMON)
 CFLAGS+=$(INCLUDE)
diff --git a/src/engine.c b/src/engine.c
index fd00e34..49f3f9c 100644
--- a/src/engine.c
+++ b/src/engine.c
@@ -228,7 +228,10 @@ static void signal_up()
 static void signal_harddrop()
 {
     while (field_move_shape_down(&fld, 1));
-    transition_put_shape();
+    if (field_shape_out_of_bounds(&fld, &fld.shape[1]))
+        transition_game_over();
+    else
+        transition_put_shape();
     sfClock_restart(game.gameTick);
     sfClock_restart(game.putTick);
 }