diff --git a/lib/read.cs.js b/lib/read.wsh.js
similarity index 100%
rename from lib/read.cs.js
rename to lib/read.wsh.js
diff --git a/lib/readline-sync.js b/lib/readline-sync.js
index eecd9b5..f6a512c 100644
--- a/lib/readline-sync.js
+++ b/lib/readline-sync.js
@@ -198,7 +198,7 @@ function readlineExt(options) {
           '-File', __dirname + '\\read.ps1']; // eslint-disable-line no-path-concat
       } else { // Windows Script Host
         extHostPath = 'cscript.exe';
-        extHostArgs = ['//nologo', __dirname + '\\read.cs.js']; // eslint-disable-line no-path-concat
+        extHostArgs = ['//nologo', __dirname + '\\read.wsh.js']; // eslint-disable-line no-path-concat
       }
     } else {
       extHostPath = '/bin/sh';