diff --git a/bin/puppet/setup_colony.pl b/bin/puppet/setup_colony.pl
index 68efc5c6..b8d2c32d 100755
--- a/bin/puppet/setup_colony.pl
+++ b/bin/puppet/setup_colony.pl
@@ -41,6 +41,8 @@ our $quiet;
   }
   print "Really!\n";
   if ($sanitize) {
+    my @all_buildings = @{$body->building_cache};
+    $body->delete_buildings(\@all_buildings);
     $body->sanitize;
   }
   print "Checking empire\n";
diff --git a/lib/Lacuna/DB/Result/Ships.pm b/lib/Lacuna/DB/Result/Ships.pm
index 63a34ef0..ad3daa19 100644
--- a/lib/Lacuna/DB/Result/Ships.pm
+++ b/lib/Lacuna/DB/Result/Ships.pm
@@ -436,7 +436,10 @@ sub send {
     my $end_range = DateTime->now->add(seconds => ($seconds2arrive + $sec_rng));
     my $ships_rs;
     my $ag_chk = 0;
-    if ( grep { $self->type eq $_ } @ag_list ) {
+    if ($target->isa('Lacuna::DB::Result::Map::Star')) {
+        $ag_chk = 0; #Just an empty statement.
+    }
+    elsif ( grep { $self->type eq $_ } @ag_list ) {
         $ships_rs = Lacuna->db->resultset('Lacuna::DB::Result::Ships')->search({
             id      => { '!=' => $self->id },
             body_id => $self->body_id,
diff --git a/lib/Lacuna/DB/Result/Ships/AttackGroup.pm b/lib/Lacuna/DB/Result/Ships/AttackGroup.pm
index 2aa9064e..cdd9c931 100644
--- a/lib/Lacuna/DB/Result/Ships/AttackGroup.pm
+++ b/lib/Lacuna/DB/Result/Ships/AttackGroup.pm
@@ -25,6 +25,7 @@ with "Lacuna::Role::Ship::Arrive::DeployBleeder";
 with "Lacuna::Role::Ship::Arrive::DeploySmolderingCrater";
 with "Lacuna::Role::Ship::Arrive::ScanSurface";
 with "Lacuna::Role::Ship::Arrive::SurveySurface";
+with "Lacuna::Role::Ship::Arrive::DestroyMinersExcavators";
 with "Lacuna::Role::Ship::Arrive::GroupHome";
 
 no Moose;
diff --git a/lib/Lacuna/RPC/Building/SpacePort.pm b/lib/Lacuna/RPC/Building/SpacePort.pm
index 85bbe54e..c3811794 100644
--- a/lib/Lacuna/RPC/Building/SpacePort.pm
+++ b/lib/Lacuna/RPC/Building/SpacePort.pm
@@ -380,6 +380,7 @@ sub send_ship_types {
         number_of_docks => 0,
     };
     my $payload;
+    $ag_chk = 0 if ($target->isa('Lacuna::DB::Result::Map::Star'));
     
     foreach my $ship (values %$ship_ref) {
         if ($ag_chk > 1 and grep { $ship->type eq $_ } @ag_list) {
diff --git a/lib/Lacuna/Role/Ship/Arrive/DestroyMinersExcavators.pm b/lib/Lacuna/Role/Ship/Arrive/DestroyMinersExcavators.pm
index 2e5d1951..57e5b31a 100644
--- a/lib/Lacuna/Role/Ship/Arrive/DestroyMinersExcavators.pm
+++ b/lib/Lacuna/Role/Ship/Arrive/DestroyMinersExcavators.pm
@@ -14,6 +14,32 @@ after handle_arrival_procedures => sub {
   my $is_uninhabit  = ($body_attacked->isa('Lacuna::DB::Result::Map::Body::Planet') and !(defined($body_attacked->empire_id)) );
 # not an asteroid or uninhabited planet
   return unless ( $self->foreign_body_id && ($is_asteroid || $is_uninhabit));
+  my $do_boom = 0;
+  my $done_after = 1;
+  if ($self->type eq "attack_group") {
+      my $payload = $self->payload;
+      my @trim;
+      for my $fleet (keys %{$payload->{fleet}}) {
+          if ($payload->{fleet}->{$fleet}->{type} eq "detonators") {
+              $do_boom = 1;
+              push @trim, $fleet;
+          }
+          else {
+              $done_after = 0;
+          }
+      }
+      if ($done_after == 0 and $do_scan) {
+          for my $key (@trim) {
+              delete $payload->{fleet}->{$key};
+          }
+          $self->payload($payload);
+          $self->update;
+      }
+  }
+  else {
+      $do_boom = 1;
+  }
+  return unless $do_boom;
 
   my $logs = Lacuna->db->resultset('Lacuna::DB::Result::Log::Battles');
   my $mcount = 0;
diff --git a/var/www/public/changes.txt b/var/www/public/changes.txt
index 509ba32b..d4670854 100644
--- a/var/www/public/changes.txt
+++ b/var/www/public/changes.txt
@@ -3,7 +3,8 @@
  - Add: view_unread Inbox API
  - Add: Stations auto-seize
  - Add: Voting allowed in embassy
- - Fix: Detonators do not group when sent toward different stars.
+ - Fix: If star is a target, no grouping.
+ - Fix: Detonators work properly on arrival.
 
 3.0909:
  - Add: Admin UI to set alliance logo.