diff --git a/packages/create-react-app/index.js b/packages/create-react-app/index.js
index 02f9de254a0..3c363bffaa9 100644
--- a/packages/create-react-app/index.js
+++ b/packages/create-react-app/index.js
@@ -154,7 +154,7 @@ function getInstallPackage(version) {
 function getPackageName(installPackage) {
   if (~installPackage.indexOf('.tgz')) {
     return installPackage.match(/^.+\/(.+)-.+\.tgz$/)[1];
-  } else if (~installPackage.indexOf('@')) {
+  } else if (installPackage.indexOf('@') > 0) {
     return installPackage.split('@')[0];
   }
   return installPackage;