diff --git a/src/dispatch/bind_define.h b/src/dispatch/bind_define.h
index 28879df..19d743e 100644
--- a/src/dispatch/bind_define.h
+++ b/src/dispatch/bind_define.h
@@ -740,7 +740,7 @@ int32_t centerwin(const Arg *arg) {
 		return 0;
 
 	if (c->isfloating) {
-		c->float_geom = setclient_coordinate_center(c, c->geom, 0, 0);
+		c->float_geom = setclient_coordinate_center(c, c->mon, c->geom, 0, 0);
 		c->iscustomsize = 1;
 		resize(c, c->float_geom, 1);
 		return 0;
@@ -1055,7 +1055,7 @@ int32_t tagmon(const Arg *arg) {
 	c->float_geom.height =
 		(int32_t)(c->float_geom.height * c->mon->w.height / selmon->w.height);
 	selmon = c->mon;
-	c->float_geom = setclient_coordinate_center(c, c->float_geom, 0, 0);
+	c->float_geom = setclient_coordinate_center(c, c->mon, c->float_geom, 0, 0);
 
 	// 重新计算居中的坐标
 	// 重新计算居中的坐标
diff --git a/src/fetch/client.h b/src/fetch/client.h
index 22db029..0af1723 100644
--- a/src/fetch/client.h
+++ b/src/fetch/client.h
@@ -74,12 +74,12 @@ Client *get_client_by_id_or_title(const char *arg_id, const char *arg_title) {
 	return target_client;
 }
 struct wlr_box // 计算客户端居中坐标
-setclient_coordinate_center(Client *c, struct wlr_box geom, int32_t offsetx,
-							int32_t offsety) {
+setclient_coordinate_center(Client *c, Monitor *tm, struct wlr_box geom,
+							int32_t offsetx, int32_t offsety) {
 	struct wlr_box tempbox;
 	int32_t offset = 0;
 	int32_t len = 0;
-	Monitor *m = c->mon ? c->mon : selmon;
+	Monitor *m = tm ? tm : selmon;
 
 	uint32_t cbw = check_hit_no_border(c) ? c->bw : 0;
 
diff --git a/src/mango.c b/src/mango.c
index 89ee23e..a22e8be 100644
--- a/src/mango.c
+++ b/src/mango.c
@@ -689,7 +689,7 @@ static void show_scratchpad(Client *c);
 static void show_hide_client(Client *c);
 static void tag_client(const Arg *arg, Client *target_client);
 
-static struct wlr_box setclient_coordinate_center(Client *c,
+static struct wlr_box setclient_coordinate_center(Client *c, Monitor *m,
 												  struct wlr_box geom,
 												  int32_t offsetx,
 												  int32_t offsety);
@@ -952,7 +952,8 @@ void client_change_mon(Client *c, Monitor *m) {
 	setmon(c, m, c->tags, true);
 	reset_foreign_tolevel(c);
 	if (c->isfloating) {
-		c->float_geom = c->geom = setclient_coordinate_center(c, c->geom, 0, 0);
+		c->float_geom = c->geom =
+			setclient_coordinate_center(c, c->mon, c->geom, 0, 0);
 	}
 }
 
@@ -1019,7 +1020,7 @@ void show_scratchpad(Client *c) {
 							 : c->mon->w.height * scratchpad_height_ratio;
 		// 重新计算居中的坐标
 		c->float_geom = c->geom = c->animainit_geom = c->animation.current =
-			setclient_coordinate_center(c, c->geom, 0, 0);
+			setclient_coordinate_center(c, c->mon, c->geom, 0, 0);
 		c->iscustomsize = 1;
 		resize(c, c->geom, 0);
 	}
@@ -1089,7 +1090,8 @@ bool switch_scratchpad_client_state(Client *c) {
 		c->float_geom.height = (int32_t)(c->float_geom.height *
 										 c->mon->w.height / oldmon->w.height);
 
-		c->float_geom = setclient_coordinate_center(c, c->float_geom, 0, 0);
+		c->float_geom =
+			setclient_coordinate_center(c, c->mon, c->float_geom, 0, 0);
 
 		// 只有显示状态的scratchpad才需要聚焦和返回true
 		if (c->is_scratchpad_show) {
@@ -1345,7 +1347,7 @@ void applyrules(Client *c) {
 		if (r->offsetx || r->offsety) {
 			c->iscustompos = 1;
 			c->float_geom = c->geom = setclient_coordinate_center(
-				c, c->float_geom, r->offsetx, r->offsety);
+				c, mon, c->float_geom, r->offsetx, r->offsety);
 		}
 		if (c->isfloating) {
 			c->geom = c->float_geom.width > 0 && c->float_geom.height > 0
@@ -1363,7 +1365,8 @@ void applyrules(Client *c) {
 	// the hit size
 	if (!c->iscustompos &&
 		(!client_is_x11(c) || (c->geom.x == 0 && c->geom.y == 0))) {
-		c->float_geom = c->geom = setclient_coordinate_center(c, c->geom, 0, 0);
+		c->float_geom = c->geom =
+			setclient_coordinate_center(c, mon, c->geom, 0, 0);
 	} else {
 		c->float_geom = c->geom;
 	}
@@ -4537,7 +4540,8 @@ setfloating(Client *c, int32_t floating) {
 
 		// 重新计算居中的坐标
 		if (!client_is_x11(c) && !c->iscustompos)
-			target_box = setclient_coordinate_center(c, target_box, 0, 0);
+			target_box =
+				setclient_coordinate_center(c, c->mon, target_box, 0, 0);
 		else
 			target_box = c->geom;
 
@@ -4553,7 +4557,7 @@ setfloating(Client *c, int32_t floating) {
 			}
 			if (window_size_outofrange) {
 				c->float_geom =
-					setclient_coordinate_center(c, c->float_geom, 0, 0);
+					setclient_coordinate_center(c, c->mon, c->float_geom, 0, 0);
 			}
 			resize(c, c->float_geom, 0);
 		} else {