diff --git a/data/event-schemas/examples/m.call.answer.yaml b/data/event-schemas/examples/m.call.answer.yaml
index b3eb1be4..8a627360 100644
--- a/data/event-schemas/examples/m.call.answer.yaml
+++ b/data/event-schemas/examples/m.call.answer.yaml
@@ -11,11 +11,11 @@
     },
     "sdp_stream_metadata": {
         "271828182845": {
-            "purpose": "m.screenshare",
+            "purpose": "m.screenshare"
         },
         "314159265358": {
-            "purpose": "m.usermedia",
-        },
+            "purpose": "m.usermedia"
+        }
     }
   }
 }
diff --git a/data/event-schemas/examples/m.call.invite.yaml b/data/event-schemas/examples/m.call.invite.yaml
index 9958cfe7..9547854b 100644
--- a/data/event-schemas/examples/m.call.invite.yaml
+++ b/data/event-schemas/examples/m.call.invite.yaml
@@ -12,11 +12,11 @@
     },
     "sdp_stream_metadata": {
         "271828182845": {
-            "purpose": "m.screenshare",
+            "purpose": "m.screenshare"
         },
         "314159265358": {
-            "purpose": "m.usermedia",
-        },
+            "purpose": "m.usermedia"
+        }
     }
   }
 }
diff --git a/data/event-schemas/examples/m.call.negotiate.yaml b/data/event-schemas/examples/m.call.negotiate.yaml
index fc79321f..3120ee54 100644
--- a/data/event-schemas/examples/m.call.negotiate.yaml
+++ b/data/event-schemas/examples/m.call.negotiate.yaml
@@ -12,11 +12,11 @@
     },
     "sdp_stream_metadata": {
         "271828182845": {
-            "purpose": "m.screenshare",
+            "purpose": "m.screenshare"
         },
         "314159265358": {
-            "purpose": "m.usermedia",
-        },
+            "purpose": "m.usermedia"
+        }
     }
   }
 }