diff --git a/packages/@lwc/engine-core/src/framework/template.ts b/packages/@lwc/engine-core/src/framework/template.ts
index 1b2ecc9d76..ddb93728fb 100644
--- a/packages/@lwc/engine-core/src/framework/template.ts
+++ b/packages/@lwc/engine-core/src/framework/template.ts
@@ -66,7 +66,7 @@ export function setVMBeingRendered(vm: VM | null) {
     vmBeingRendered = vm;
 }
 
-const VALID_SCOPE_TOKEN_REGEX = /^[a-zA-Z0-9\-_.]+$/;
+const VALID_SCOPE_TOKEN_REGEX = /^[a-zA-Z0-9\-_]+$/;
 
 // See W-16614556
 // TODO [#2826]: freeze the template object