diff --git a/GMGridView/GMGridView.m b/GMGridView/GMGridView.m
index e507a40..83df663 100644
--- a/GMGridView/GMGridView.m
+++ b/GMGridView/GMGridView.m
@@ -1589,7 +1589,7 @@ - (void)insertObjectAtIndex:(NSInteger)index withAnimation:(GMGridViewItemAnimat
     {        
         cell = [self newItemSubViewForPosition:index];
         
-        for (int i = index; i < _numberTotalItems; i++)
+        for (int i = _numberToTotalItems - 1; i >= index; i--)
         {
             UIView *oldView = [self cellForItemAtIndex:i];
             oldView.tag = oldView.tag + 1;