diff --git a/lib/ezdoc/xml/document_xml.rb b/lib/ezdoc/xml/document_xml.rb
index d97cd02..4423165 100644
--- a/lib/ezdoc/xml/document_xml.rb
+++ b/lib/ezdoc/xml/document_xml.rb
@@ -130,27 +130,38 @@ module Ezdoc
       end
 
       def render_table(xml, table)
+        column_count = table.rows.first&.cells&.size || 1
+        col_width = 5000 / column_count
+
         xml["w"].tbl do
           xml["w"].tblPr do
-            xml["w"].tblW("w:w" => "0", "w:type" => "auto")
+            xml["w"].tblW("w:w" => "5000", "w:type" => "pct")
             xml["w"].tblBorders do
               %w[top left bottom right insideH insideV].each do |border|
-                xml["w"].send(border, "w:val" => "single", "w:sz" => "4", "w:color" => "000000")
+                xml["w"].send(border, "w:val" => "single", "w:sz" => "4", "w:space" => "0", "w:color" => "000000")
               end
             end
           end
-          table.rows.each { |row| render_table_row(xml, row) }
+          xml["w"].tblGrid do
+            column_count.times do
+              xml["w"].gridCol("w:w" => col_width.to_s)
+            end
+          end
+          table.rows.each { |row| render_table_row(xml, row, col_width) }
         end
       end
 
-      def render_table_row(xml, row)
+      def render_table_row(xml, row, col_width)
         xml["w"].tr do
-          row.cells.each { |cell| render_table_cell(xml, cell) }
+          row.cells.each { |cell| render_table_cell(xml, cell, col_width) }
         end
       end
 
-      def render_table_cell(xml, cell)
+      def render_table_cell(xml, cell, col_width)
         xml["w"].tc do
+          xml["w"].tcPr do
+            xml["w"].tcW("w:w" => col_width.to_s, "w:type" => "pct")
+          end
           xml["w"].p do
             cell.runs.each { |run| render_run(xml, run) }
           end