diff --git a/database/migrations/2018_12_03_193037_drop_fleet_end_column_fleets_table.php b/database/migrations/2018_12_03_193037_drop_fleet_end_column_fleets_table.php
index 688fb8bb7..ab8db276b 100644
--- a/database/migrations/2018_12_03_193037_drop_fleet_end_column_fleets_table.php
+++ b/database/migrations/2018_12_03_193037_drop_fleet_end_column_fleets_table.php
@@ -13,9 +13,11 @@ class DropFleetEndColumnFleetsTable extends Migration
      */
     public function up()
     {
-        Schema::table('Fleets', function($table) {
-            $table->dropColumn('fleet_end');
-        });
+        if(Schema::hasColumn('Fleets', 'fleet_end')) {
+            Schema::table('Fleets', function($table) {
+                $table->dropColumn('fleet_end');
+            });
+        }
     }
 
     /**
diff --git a/database/migrations/2018_12_07_053132_drop__structures_table.php b/database/migrations/2018_12_07_053132_drop__structures_table.php
index d4db7f74f..cd5a831b5 100644
--- a/database/migrations/2018_12_07_053132_drop__structures_table.php
+++ b/database/migrations/2018_12_07_053132_drop__structures_table.php
@@ -13,9 +13,7 @@ class DropStructuresTable extends Migration
      */
     public function up()
     {
-        Schema::table('Fleets', function($table) {
-            $table->dropColumn('fleet_end');
-        });
+        Schema::dropIfExists('Structures');
     }
 
     /**