diff --git a/database/migrations/2016_07_10_000354_add_deleted_at_column_to_activities.php b/database/migrations/2016_07_10_000354_add_deleted_at_column_to_activities.php
index e62de81a..6c4bad34 100644
--- a/database/migrations/2016_07_10_000354_add_deleted_at_column_to_activities.php
+++ b/database/migrations/2016_07_10_000354_add_deleted_at_column_to_activities.php
@@ -30,38 +30,40 @@ class AddDeletedAtColumnToActivities extends Migration
      */
     public function up()
     {
-        Schema::table('activities', function(Blueprint $table) {
-            $table->softDeletes()->index();
-        });
+        if (!Schema::hasColumn('activities', 'deleted_at')) {
+            Schema::table('activities', function (Blueprint $table) {
+                $table->softDeletes()->index();
+            });
 
-        // Retroactively fix activities that should be marked as deleted.
-        // Tracks
-        DB::table('activities')
-            ->where('resource_type', 2)
-            ->join('tracks', 'activities.resource_id', '=', 'tracks.id')
-            ->whereNotNull('tracks.deleted_at')
-            ->update(['deleted_at' => DB::raw('tracks.deleted_at')]);
+            // Retroactively fix activities that should be marked as deleted.
+            // Tracks
+            DB::table('activities')
+                ->where('resource_type', 2)
+                ->join('tracks', 'activities.resource_id', '=', 'tracks.id')
+                ->whereNotNull('tracks.deleted_at')
+                ->update(['deleted_at' => DB::raw('tracks.deleted_at')]);
 
-        // Albums
-        DB::table('activities')
-            ->where('resource_type', 3)
-            ->join('albums', 'activities.resource_id', '=', 'albums.id')
-            ->whereNotNull('albums.deleted_at')
-            ->update(['deleted_at' => DB::raw('albums.deleted_at')]);
+            // Albums
+            DB::table('activities')
+                ->where('resource_type', 3)
+                ->join('albums', 'activities.resource_id', '=', 'albums.id')
+                ->whereNotNull('albums.deleted_at')
+                ->update(['deleted_at' => DB::raw('albums.deleted_at')]);
 
-        // Playlists
-        DB::table('activities')
-            ->where('resource_type', 4)
-            ->join('playlists', 'activities.resource_id', '=', 'playlists.id')
-            ->whereNotNull('playlists.deleted_at')
-            ->update(['deleted_at' => DB::raw('playlists.deleted_at')]);
+            // Playlists
+            DB::table('activities')
+                ->where('resource_type', 4)
+                ->join('playlists', 'activities.resource_id', '=', 'playlists.id')
+                ->whereNotNull('playlists.deleted_at')
+                ->update(['deleted_at' => DB::raw('playlists.deleted_at')]);
 
-        // Comments
-        DB::table('activities')
-            ->where('resource_type', 5)
-            ->join('comments', 'activities.resource_id', '=', 'comments.id')
-            ->whereNotNull('comments.deleted_at')
-            ->update(['deleted_at' => DB::raw('comments.deleted_at')]);
+            // Comments
+            DB::table('activities')
+                ->where('resource_type', 5)
+                ->join('comments', 'activities.resource_id', '=', 'comments.id')
+                ->whereNotNull('comments.deleted_at')
+                ->update(['deleted_at' => DB::raw('comments.deleted_at')]);
+        }
     }
 
     /**