diff --git a/index.js b/index.js
index f1b3aa7..2d88e36 100644
--- a/index.js
+++ b/index.js
@@ -20,7 +20,7 @@ class Say {
       return new SayWin32()
     }
 
-    throw new Error(`new Say(): unsupported platorm! ${platform}`)
+    throw new Error(`new Say(): unsupported platform: ${platform}`)
   }
 }