diff --git a/plugins/ice/src/transport_parameters.vala b/plugins/ice/src/transport_parameters.vala
index 73cf6166..fdeebb82 100644
--- a/plugins/ice/src/transport_parameters.vala
+++ b/plugins/ice/src/transport_parameters.vala
@@ -43,13 +43,14 @@ public class Dino.Plugins.Ice.TransportParameters : JingleIceUdp.IceUdpTransport
                     if (dtls_srtp_handler != null) {
                         uint8[] encrypted_data = dtls_srtp_handler.process_outgoing_data(component_id, datagram.get_data());
                         if (encrypted_data == null) return;
-                        // TODO: Nonblocking might require certain libnice versions?
-                        GLib.OutputVector[] vectors = {{ encrypted_data, encrypted_data.length }};
+                        GLib.OutputVector vector = { encrypted_data, encrypted_data.length };
+                        GLib.OutputVector[] vectors = { vector };
                         Nice.OutputMessage message = { vectors };
                         Nice.OutputMessage[] messages = { message };
                         agent.send_messages_nonblocking(stream_id, component_id, messages);
                     } else {
-                        GLib.OutputVector[] vectors = {{ datagram.get_data(), datagram.get_size() }};
+                        GLib.OutputVector vector = { datagram.get_data(), datagram.get_size() };
+                        GLib.OutputVector[] vectors = { vector };
                         Nice.OutputMessage message = { vectors };
                         Nice.OutputMessage[] messages = { message };
                         agent.send_messages_nonblocking(stream_id, component_id, messages);
diff --git a/plugins/rtp/CMakeLists.txt b/plugins/rtp/CMakeLists.txt
index fa4f367c..3a121a13 100644
--- a/plugins/rtp/CMakeLists.txt
+++ b/plugins/rtp/CMakeLists.txt
@@ -20,6 +20,10 @@ if(Vala_VERSION VERSION_GREATER "0.50")
     set(RTP_DEFINITIONS VALA_0_50)
 endif()
 
+if(Vala_VERSION VERSION_GREATER "0.52")
+    set(RTP_DEFINITIONS VALA_0_52)
+endif()
+
 if(WebRTCAudioProcessing_VERSION GREATER "0.4")
     message(STATUS "Ignoring WebRTCAudioProcessing, only versions < 0.4 supported so far")
     unset(WebRTCAudioProcessing_FOUND)