diff --git a/src/cellParser/RenderContext.ts b/src/cellParser/RenderContext.ts
index e7b7c07..43bf8e5 100644
--- a/src/cellParser/RenderContext.ts
+++ b/src/cellParser/RenderContext.ts
@@ -14,7 +14,7 @@ class RenderContext {
 
     render(context: string) {
         const res = this.cellParser.prepare(context)
-        if (typeof res === 'string') {
+        if (typeof res === 'string' || typeof res === 'number') {
             return res
         }
         if (res instanceof HTMLElement) {