diff --git a/changelogs/client_server/newsfragments/1054.clarification b/changelogs/client_server/newsfragments/1054.clarification
new file mode 100644
index 00000000..3ccb2333
--- /dev/null
+++ b/changelogs/client_server/newsfragments/1054.clarification
@@ -0,0 +1 @@
+Fix various typos throughout the specification.
diff --git a/data/event-schemas/examples/m.call.answer.yaml b/data/event-schemas/examples/m.call.answer.yaml
index a4cfc1e1..aaa4da71 100644
--- a/data/event-schemas/examples/m.call.answer.yaml
+++ b/data/event-schemas/examples/m.call.answer.yaml
@@ -4,7 +4,6 @@
   "content": {
     "version" : 0,
     "call_id": "12345",
-    "lifetime": 60000,
     "answer": {
       "type" : "answer",
       "sdp" : "v=0\r\no=- 6584580628695956864 2 IN IP4 127.0.0.1[...]"