diff --git a/commons/passive/google/google_sleep_segment_event.avsc b/commons/passive/google/google_sleep_segment_event.avsc
index e690fe43..6fc46f9c 100644
--- a/commons/passive/google/google_sleep_segment_event.avsc
+++ b/commons/passive/google/google_sleep_segment_event.avsc
@@ -7,11 +7,11 @@
     { "name": "time", "type": "double", "doc": "The UNIX epoch time (s) for the moment when the user goes to sleep." },
     { "name": "timeReceived", "type": "double", "doc": "Device receiver timestamp in UTC (s)." },
     { "name": "endTime", "type": "double", "doc": "The UNIX epoch time (s) for the moment when the user wakes up." },
-    { "name": "status", "type": {
+    { "name": "status", "type": [ "null", {
       "name": "SleepClassificationStatus",
       "type": "enum",
       "doc": "The status of the sleep segment detection. \nSUCCESSFUL indicates successful detection of sleep segment in the past day.\nNOT_DETECTED indicates Sleep segment is not detected in the past day, or there isn't enough confidence that the user slept during the past day. This could happen for a variety of reasons, including the following: too much missing data, the user sleeps with the light, the user interacts with their device often, or the user's device doesn't support the sensors needed for sleep detection. \nMISSING_DATA indicates sleep segment was detected, but there was some missing data near the detected sleep segment. This could happen for a variety of reasons, including the following: the user turned off their device, the user delayed logging into their device after a system reboot or system upgrade, or an event occurred that paused the detection.",
       "symbols": ["SUCCESSFUL", "MISSING_DATA", "NOT_DETECTED", "UNKNOWN"]
-    }, "doc": "Status that indicates whether the system succeeded in detecting sleep.", "default": "UNKNOWN" }
+    }], "doc": "Status that indicates whether the system succeeded in detecting sleep.", "default": null }
   ]
 }