diff --git a/.gitignore b/.gitignore
index b2e50bdae..8026a7080 100644
--- a/.gitignore
+++ b/.gitignore
@@ -65,4 +65,5 @@ _SpecRunner.html
 .DS_Store
 
 # Ignore xlsx files generated during testing
-*.xlsx
\ No newline at end of file
+*.xlsx
+enpm-lock.yaml
\ No newline at end of file
diff --git a/lib/doc/column.js b/lib/doc/column.js
index f7636172c..c7fc282fe 100644
--- a/lib/doc/column.js
+++ b/lib/doc/column.js
@@ -297,6 +297,13 @@ class Column {
     const columns = [];
     let count = 1;
     let index = 0;
+    /**
+     * sort cols by min
+     * If it is not sorted, the subsequent column configuration will be overwritten
+     * */
+    cols = cols.sort(function(pre, next)  {
+      return pre.min - next.min;
+    });
     while (index < cols.length) {
       const col = cols[index++];
       while (count < col.min) {