diff --git a/lib/readline.js b/lib/readline.js
index ee2fe1de86e..957bb817580 100644
--- a/lib/readline.js
+++ b/lib/readline.js
@@ -182,9 +182,13 @@ Interface.prototype.setPrompt = function(prompt) {
 
 
 Interface.prototype._setRawMode = function(mode) {
+  const wasInRawMode = this.input.isRaw;
+
   if (typeof this.input.setRawMode === 'function') {
-    return this.input.setRawMode(mode);
+    this.input.setRawMode(mode);
   }
+
+  return wasInRawMode;
 };