diff --git a/src/main/java/carpet/mixins/Main_clientCoreMixin.java b/src/main/java/carpet/mixins/Main_clientCoreMixin.java
index 99cd04ff..7e886d93 100644
--- a/src/main/java/carpet/mixins/Main_clientCoreMixin.java
+++ b/src/main/java/carpet/mixins/Main_clientCoreMixin.java
@@ -10,7 +10,10 @@ import org.spongepowered.asm.mixin.injection.callback.CallbackInfo;
 @Mixin(Main.class)
 public class Main_clientCoreMixin
 {
-    @Inject(method = "main", at = @At("HEAD"))
+    @Inject(method = "main", at = @At( // little bit later giving extensions time to react an join the train
+            value = "INVOKE",
+            target = "Ljoptsimple/OptionParser;parse([Ljava/lang/String;)Ljoptsimple/OptionSet;")
+    )
     private static void onServerStarted(String[] args, CallbackInfo ci)
     {
         CarpetServer.onGameStarted();
diff --git a/src/main/java/carpet/mixins/Main_serverCoreMixin.java b/src/main/java/carpet/mixins/Main_serverCoreMixin.java
index 1860b9e6..57f45d21 100644
--- a/src/main/java/carpet/mixins/Main_serverCoreMixin.java
+++ b/src/main/java/carpet/mixins/Main_serverCoreMixin.java
@@ -10,7 +10,10 @@ import org.spongepowered.asm.mixin.injection.callback.CallbackInfo;
 @Mixin(Main.class)
 public class Main_serverCoreMixin
 {
-    @Inject(method = "main", at = @At("HEAD"))
+    @Inject(method = "main", at = @At( // little bit later than main to add chance for extensions to register.
+            value = "INVOKE",
+            target = "Ljoptsimple/OptionParser;parse([Ljava/lang/String;)Ljoptsimple/OptionSet;")
+    )
     private static void onServerStarted(String[] args, CallbackInfo ci)
     {
         CarpetServer.onGameStarted();