diff --git a/lib/models/call_config.dart b/lib/models/call_config.dart
index 000fd04..788d1df 100644
--- a/lib/models/call_config.dart
+++ b/lib/models/call_config.dart
@@ -13,6 +13,7 @@ class CallConfig {
 
   /// Turn this call configuration into the right for the WebRTC plugin
   Map<String, dynamic> get pluginConfig => {
-        "iceServers": iceServers.map((f) => {"url": f}).toList()
+        "iceServers": iceServers.map((f) => {"url": f}).toList(),
+        "sdpSemantics": "unified-plan",
       };
 }
diff --git a/lib/ui/screens/call_screen.dart b/lib/ui/screens/call_screen.dart
index df9ddae..7177ad9 100644
--- a/lib/ui/screens/call_screen.dart
+++ b/lib/ui/screens/call_screen.dart
@@ -237,8 +237,7 @@ class _CallScreenState extends SafeState<CallScreen> {
       setState(() {});
 
       // Open stream
-      final peerConnection = await createPeerConnection(
-          _conf.pluginConfig..addAll({"sdpSemantics": "unified-plan"}), {
+      final peerConnection = await createPeerConnection(_conf.pluginConfig, {
         "mandatory": {},
         "optional": [],
       });