diff --git a/app/Http/Controllers/Api/ApiV1Controller.php b/app/Http/Controllers/Api/ApiV1Controller.php
index 3a309145c..4cb8b919d 100644
--- a/app/Http/Controllers/Api/ApiV1Controller.php
+++ b/app/Http/Controllers/Api/ApiV1Controller.php
@@ -3494,7 +3494,7 @@ class ApiV1Controller extends Controller
             return [];
         }
 
-        $defaultCaption = config_cache('database.default') === 'mysql' ? null : "";
+        $defaultCaption = "";
         $content = $request->filled('status') ? strip_tags($request->input('status')) : $defaultCaption;
         $cw = $user->profile->cw == true ? true : $request->boolean('sensitive', false);
         $spoilerText = $cw && $request->filled('spoiler_text') ? $request->input('spoiler_text') : null;
diff --git a/app/Http/Controllers/Api/ApiV1Dot1Controller.php b/app/Http/Controllers/Api/ApiV1Dot1Controller.php
index bb82521b6..c84dcae1c 100644
--- a/app/Http/Controllers/Api/ApiV1Dot1Controller.php
+++ b/app/Http/Controllers/Api/ApiV1Dot1Controller.php
@@ -1292,7 +1292,7 @@ class ApiV1Dot1Controller extends Controller
         if ($user->last_active_at == null) {
             return [];
         }
-        $defaultCaption = config_cache('database.default') === 'mysql' ? null : "";
+        $defaultCaption = "";
         $content = $request->filled('status') ? strip_tags(Purify::clean($request->input('status'))) : $defaultCaption;
         $cw = $user->profile->cw == true ? true : $request->boolean('sensitive', false);
         $spoilerText = $cw && $request->filled('spoiler_text') ? $request->input('spoiler_text') : null;
diff --git a/app/Http/Controllers/CommentController.php b/app/Http/Controllers/CommentController.php
index f529b0ebd..3521a61d5 100644
--- a/app/Http/Controllers/CommentController.php
+++ b/app/Http/Controllers/CommentController.php
@@ -55,14 +55,12 @@ class CommentController extends Controller
         }
 
         $reply = DB::transaction(function () use ($comment, $status, $profile, $nsfw) {
-            $defaultCaption = config_cache('database.default') === 'mysql' ? null : "";
-
             $scope = $profile->is_private == true ? 'private' : 'public';
             $reply = new Status;
             $reply->profile_id = $profile->id;
             $reply->is_nsfw = $nsfw;
             $reply->caption = Purify::clean($comment);
-            $reply->rendered = $defaultCaption;
+            $reply->rendered = "";
             $reply->in_reply_to_id = $status->id;
             $reply->in_reply_to_profile_id = $status->profile_id;
             $reply->scope = $scope;
diff --git a/app/Http/Controllers/ComposeController.php b/app/Http/Controllers/ComposeController.php
index 2069e2693..4e65339c3 100644
--- a/app/Http/Controllers/ComposeController.php
+++ b/app/Http/Controllers/ComposeController.php
@@ -570,7 +570,7 @@ class ComposeController extends Controller
             $status->cw_summary = $request->input('spoiler_text');
         }
 
-        $defaultCaption = config_cache('database.default') === 'mysql' ? null : "";
+        $defaultCaption = "";
         $status->caption = strip_tags($request->input('caption')) ?? $defaultCaption;
         $status->rendered = $defaultCaption;
         $status->scope = 'draft';
diff --git a/app/Util/ActivityPub/Helpers.php b/app/Util/ActivityPub/Helpers.php
index bda1f4043..ef77a3bd4 100644
--- a/app/Util/ActivityPub/Helpers.php
+++ b/app/Util/ActivityPub/Helpers.php
@@ -689,7 +689,7 @@ class Helpers
             return $option['replies']['totalItems'] ?? 0;
         })->toArray();
 
-        $defaultCaption = config_cache('database.default') === 'mysql' ? null : "";
+        $defaultCaption = "";
         $status = new Status;
         $status->profile_id = $profile->id;
         $status->url = isset($res['url']) ? $res['url'] : $url;