diff --git a/core/imageboard/image.php b/core/imageboard/image.php
index 27738817..7dc45712 100644
--- a/core/imageboard/image.php
+++ b/core/imageboard/image.php
@@ -659,16 +659,12 @@ class Image
         return $this->locked;
     }
 
-    public function set_locked(bool $tf): void
+    public function set_locked(bool $locked): void
     {
         global $database;
-        $ln = $tf ? "Y" : "N";
-        $sln = $database->scoreql_to_sql('SCORE_BOOL_'.$ln);
-        $sln = str_replace("'", "", $sln);
-        $sln = str_replace('"', "", $sln);
-        if (bool_escape($sln) !== $this->locked) {
-            $database->execute("UPDATE images SET locked=:yn WHERE id=:id", ["yn"=>$sln, "id"=>$this->id]);
-            log_info("core_image", "Setting Image #{$this->id} lock to: $ln");
+        if ($locked !== $this->locked) {
+            $database->execute("UPDATE images SET locked=:yn WHERE id=:id", ["yn"=>$locked, "id"=>$this->id]);
+            log_info("core_image", "Setting Image #{$this->id} lock to: $locked");
         }
     }
 
diff --git a/core/install.php b/core/install.php
index 74bb3e72..c86cec6e 100644
--- a/core/install.php
+++ b/core/install.php
@@ -255,7 +255,7 @@ function create_tables(Database $db)
 			width INTEGER NOT NULL,
 			height INTEGER NOT NULL,
 			posted TIMESTAMP NOT NULL DEFAULT CURRENT_TIMESTAMP,
-			locked SCORE_BOOL NOT NULL DEFAULT SCORE_BOOL_N,
+			locked BOOLEAN NOT NULL DEFAULT FALSE,
 			FOREIGN KEY (owner_id) REFERENCES users(id) ON DELETE RESTRICT
 		");
         $db->execute("CREATE INDEX images_owner_id_idx ON images(owner_id)", []);
diff --git a/ext/upgrade/main.php b/ext/upgrade/main.php
index 768f55c8..1cb8530d 100644
--- a/ext/upgrade/main.php
+++ b/ext/upgrade/main.php
@@ -32,9 +32,9 @@ class Upgrade extends Extension
         // now done again as v9 with PDO
 
         if ($this->get_version("db_version") < 8) {
-            $database->execute($database->scoreql_to_sql(
-                "ALTER TABLE images ADD COLUMN locked SCORE_BOOL NOT NULL DEFAULT SCORE_BOOL_N"
-            ));
+            $database->execute(
+                "ALTER TABLE images ADD COLUMN locked BOOLEAN NOT NULL DEFAULT FALSE"
+            );
 
             $this->set_version("db_version", 8);
         }