diff --git a/packages/compiler-core/src/parse.ts b/packages/compiler-core/src/parse.ts
index 5212480fc76..e2888e32e60 100644
--- a/packages/compiler-core/src/parse.ts
+++ b/packages/compiler-core/src/parse.ts
@@ -87,10 +87,15 @@ export function baseParse(
 
 function createParserContext(
   content: string,
-  options: ParserOptions
+  rawOptions: ParserOptions
 ): ParserContext {
+  const options = extend({}, defaultParserOptions)
+  for (const key in rawOptions) {
+    // @ts-ignore
+    options[key] = rawOptions[key] || defaultParserOptions[key]
+  }
   return {
-    options: extend({}, defaultParserOptions, options),
+    options,
     column: 1,
     line: 1,
     offset: 0,
diff --git a/packages/runtime-core/src/component.ts b/packages/runtime-core/src/component.ts
index bb1e8efdb4a..9efb657e9c5 100644
--- a/packages/runtime-core/src/component.ts
+++ b/packages/runtime-core/src/component.ts
@@ -607,7 +607,8 @@ function finishComponentSetup(
         startMeasure(instance, `compile`)
       }
       Component.render = compile(Component.template, {
-        isCustomElement: instance.appContext.config.isCustomElement || NO
+        isCustomElement: instance.appContext.config.isCustomElement
+        // delimiters: Component.delimiters
       })
       if (__DEV__) {
         endMeasure(instance, `compile`)
diff --git a/packages/runtime-core/src/componentOptions.ts b/packages/runtime-core/src/componentOptions.ts
index 65138e621a6..948ceafc538 100644
--- a/packages/runtime-core/src/componentOptions.ts
+++ b/packages/runtime-core/src/componentOptions.ts
@@ -321,6 +321,9 @@ interface LegacyOptions<
   renderTracked?: DebuggerHook
   renderTriggered?: DebuggerHook
   errorCaptured?: ErrorCapturedHook
+
+  // runtime compile only
+  delimiters?: [string, string]
 }
 
 export type OptionTypesKeys = 'P' | 'B' | 'D' | 'C' | 'M'