diff --git a/Demo/TextView.swift b/Demo/TextView.swift
index 7eb51e1b0..7eb190b8a 100644
--- a/Demo/TextView.swift
+++ b/Demo/TextView.swift
@@ -80,6 +80,7 @@ class Client: NSObject, IMKTextInput {
       return
     }
     textView.insertText(string, replacementRange: replacementRange)
+    self.replacementRange = nil
   }
 }