diff --git a/lib/routes/api/speech-credentials.js b/lib/routes/api/speech-credentials.js
index 74fd2e9..86c7e59 100644
--- a/lib/routes/api/speech-credentials.js
+++ b/lib/routes/api/speech-credentials.js
@@ -19,6 +19,10 @@ const obscureKey = (key) => {
   const key_spoiler_length = 6;
   const key_spoiler_char = 'X';
 
+  if (key.length <= key_spoiler_length) {
+    return key;
+  }
+
   return `${key.slice(0, key_spoiler_length)}${key_spoiler_char.repeat(key.length - key_spoiler_length)}`;
 };