diff --git a/proxy/src/main/java/net/md_5/bungee/forge/ForgeClientHandler.java b/proxy/src/main/java/net/md_5/bungee/forge/ForgeClientHandler.java
index 673497e5..0d683856 100644
--- a/proxy/src/main/java/net/md_5/bungee/forge/ForgeClientHandler.java
+++ b/proxy/src/main/java/net/md_5/bungee/forge/ForgeClientHandler.java
@@ -1,5 +1,6 @@
 package net.md_5.bungee.forge;
 
+import com.google.common.base.Preconditions;
 import java.util.ArrayDeque;
 import java.util.Map;
 import lombok.AccessLevel;
@@ -58,6 +59,7 @@ public class ForgeClientHandler
 
         message.setAllowExtendedPacket( true ); // FML allows extended packets so this must be enabled
         ForgeClientHandshakeState prevState = state;
+        Preconditions.checkState( packetQueue.size() < 128, "Forge packet queue too big!" );
         packetQueue.add( message );
         state = state.send( message, con );
         if ( state != prevState ) // state finished, send packets