diff --git a/src/eu/endercentral/crazy_advancements/AdvancementPacketReceiver.java b/src/eu/endercentral/crazy_advancements/AdvancementPacketReceiver.java
index b340b08..292cf32 100644
--- a/src/eu/endercentral/crazy_advancements/AdvancementPacketReceiver.java
+++ b/src/eu/endercentral/crazy_advancements/AdvancementPacketReceiver.java
@@ -20,6 +20,7 @@
 import net.minecraft.network.protocol.game.PacketPlayInAdvancements;
 import net.minecraft.network.protocol.game.PacketPlayInAdvancements.Status;
 import net.minecraft.server.network.PlayerConnection;
+import net.minecraft.server.network.ServerCommonPacketListenerImpl;
 
 public class AdvancementPacketReceiver {
 	
@@ -36,7 +37,7 @@ public class AdvancementPacketReceiver {
 			}
 		}
 		
-		for(Field f : PlayerConnection.class.getDeclaredFields()) {
+		for(Field f : ServerCommonPacketListenerImpl.class.getDeclaredFields()) {
 			if(f.getType().isAssignableFrom(NetworkManager.class)) {
 				networkManagerField = f;
 				networkManagerField.setAccessible(true);
diff --git a/src/eu/endercentral/crazy_advancements/packet/AdvancementsPacket.java b/src/eu/endercentral/crazy_advancements/packet/AdvancementsPacket.java
index 5d810bc..54d7d71 100644
--- a/src/eu/endercentral/crazy_advancements/packet/AdvancementsPacket.java
+++ b/src/eu/endercentral/crazy_advancements/packet/AdvancementsPacket.java
@@ -117,7 +117,7 @@ protected net.minecraft.advancements.Advancement convertAdvancement(Advancement
 	 */
 	public void send() {
 		PacketPlayOutAdvancements packet = build();
-		((CraftPlayer) getPlayer()).getHandle().c.a(packet);
+		((CraftPlayer) getPlayer()).getHandle().c.a(packet, null);
 	}