diff --git a/libs/events.js b/libs/events.js
index 0dfa58c4..177d6d3e 100644
--- a/libs/events.js
+++ b/libs/events.js
@@ -391,10 +391,10 @@ events.prototype.doAction = function() {
             if ((typeof data.loc[0] == 'number' || typeof data.loc[0] == 'string')
                 && (typeof data.loc[1] == 'number' || typeof data.loc[1] == 'string'))
                 data.loc = [[core.calValue(data.loc[0]), core.calValue(data.loc[1])]];
-            data.loc.forEach(function (t) {
-                core.maps.eraseBlock(t[0],t[1],data.floorId);
-            })
             if (core.isset(data.time) && data.time>0 && (!core.isset(data.floorId) || data.floorId==core.status.floorId)) {
+                data.loc.forEach(function (t) {
+                    core.maps.eraseBlock(t[0],t[1],data.floorId);
+                })
                 core.animateBlock(data.loc,'hide',data.time, function () {
                     data.loc.forEach(function (t) {
                         core.removeBlock(t[0],t[1],data.floorId)