diff --git a/source/Ox.UI/js/Form/Spreadsheet.js b/source/Ox.UI/js/Form/Spreadsheet.js
index d7c8b488..2947f61b 100644
--- a/source/Ox.UI/js/Form/Spreadsheet.js
+++ b/source/Ox.UI/js/Form/Spreadsheet.js
@@ -36,13 +36,17 @@ Ox.Spreadsheet = function(options, self) {
             self.options.value.rows.push('');
             self.options.value.values.push([0, 0, 0, 0]);
         });
-    } else if (Ox.isEmpty(self.options.value.values)) {
-        self.options.value.rows.forEach(function(row, r) {
-            self.options.value.values.push([]);
-            self.options.value.columns.forEach(function(column, c) {
-                self.options.value.values[r].push(0);
+    } else {
+        self.options.value.values = self.options.value.values || [];
+        if (Ox.isEmpty(self.options.value.values)) {
+            self.options.value.values = [];
+            self.options.value.rows.forEach(function(row, r) {
+                self.options.value.values.push([]);
+                self.options.value.columns.forEach(function(column, c) {
+                    self.options.value.values[r].push(0);
+                });
             });
-        });
+        }
     }
 
     renderSpreadsheet();