diff --git a/lib/mixins/template-stamp.html b/lib/mixins/template-stamp.html
index 11472e16f6..6d222abeea 100644
--- a/lib/mixins/template-stamp.html
+++ b/lib/mixins/template-stamp.html
@@ -204,7 +204,7 @@
         if (!template._templateInfo) {
           let templateInfo = template._templateInfo = {};
           templateInfo.nodeInfoList = [];
-          templateInfo.stripWhiteSpace = Polymer.legacyOptimizations ||
+          templateInfo.stripWhiteSpace =
             (outerTemplateInfo && outerTemplateInfo.stripWhiteSpace) ||
             template.hasAttribute('strip-whitespace');
           this._parseTemplateContent(template, templateInfo, {parent: null});