diff --git a/packages/compiler-core/src/tokenizer.ts b/packages/compiler-core/src/tokenizer.ts
index c20ebcf9486..ca122f30982 100644
--- a/packages/compiler-core/src/tokenizer.ts
+++ b/packages/compiler-core/src/tokenizer.ts
@@ -819,7 +819,7 @@ export default class Tokenizer {
     }
   }
   private stateBeforeDeclaration(c: number): void {
-    if (c === CharCodes.LeftSqaure) {
+    if (c === CharCodes.LeftSquare) {
       this.state = State.CDATASequence
       this.sequenceIndex = 0
     } else {