diff --git a/specs.json b/specs.json
index 4cad7b1..a6bd02b 100644
--- a/specs.json
+++ b/specs.json
@@ -77,6 +77,7 @@
       "earlyMedia": "boolean",
       "autoStreamTts": "boolean",
       "disableTtsCache": "boolean",
+      "trackTtsPlayout": "boolean",
       "noiseIsolation": "#noiseIsolation",
       "turnTaking": "#turnTaking"
     },