diff --git a/ui/packages/editor/src/extensions/table/table-cell.ts b/ui/packages/editor/src/extensions/table/table-cell.ts
index 9bc06fb73..0849c9d88 100644
--- a/ui/packages/editor/src/extensions/table/table-cell.ts
+++ b/ui/packages/editor/src/extensions/table/table-cell.ts
@@ -58,7 +58,9 @@ const TableCell = Node.create<TableCellOptions>({
         default: [100],
         parseHTML: (element) => {
           const colwidth = element.getAttribute("colwidth");
-          const value = colwidth ? [parseInt(colwidth, 10)] : null;
+          const value = colwidth
+            ? colwidth.split(",").map((width) => parseInt(width, 10))
+            : null;
           return value;
         },
       },
diff --git a/ui/packages/editor/src/extensions/table/table-header.ts b/ui/packages/editor/src/extensions/table/table-header.ts
index d7f63b3e4..bcc0e3d5a 100644
--- a/ui/packages/editor/src/extensions/table/table-header.ts
+++ b/ui/packages/editor/src/extensions/table/table-header.ts
@@ -41,8 +41,9 @@ const TableHeader = Node.create<TableCellOptions>({
         default: [100],
         parseHTML: (element) => {
           const colwidth = element.getAttribute("colwidth");
-          const value = colwidth ? [parseInt(colwidth, 10)] : null;
-
+          const value = colwidth
+            ? colwidth.split(",").map((width) => parseInt(width, 10))
+            : null;
           return value;
         },
       },