diff --git a/core/dbengine.php b/core/dbengine.php
index cd3f4bb4..638da437 100644
--- a/core/dbengine.php
+++ b/core/dbengine.php
@@ -217,7 +217,6 @@ class SQLite extends DBEngine
         $data = str_replace(SCORE::BOOL_Y, "'$this->BOOL_Y'", $data);
         $data = str_replace(SCORE::BOOL_N, "'$this->BOOL_N'", $data);
         $data = str_replace(SCORE::BOOL, "CHAR(1)", $data);
-        $data = str_replace("DEFAULT FALSE", "DEFAULT 0", $data);
         return $data;
     }
 
diff --git a/ext/private_image/main.php b/ext/private_image/main.php
index a22b9420..316d079e 100644
--- a/ext/private_image/main.php
+++ b/ext/private_image/main.php
@@ -133,13 +133,13 @@ class PrivateImage extends Extension
             if ($show_private) {
                 $event->add_querylet(
                     new Querylet(
-                        "private = :false OR owner_id = :private_owner_id",
-                        ["private_owner_id"=>$user->id, "false"=>false]
+                        "private != :true OR owner_id = :private_owner_id",
+                        ["private_owner_id"=>$user->id, "true"=>true]
                     )
                 );
             } else {
                 $event->add_querylet(
-                    new Querylet("private = :false", ["false"=>false])
+                    new Querylet("private != :true", ["true"=>true])
                 );
             }
         }
@@ -153,8 +153,8 @@ class PrivateImage extends Extension
             $query = "";
             switch ($matches[1]) {
                 case "no":
-                    $query .= "private = :false";
-                    $params["false"] = false;
+                    $query .= "private != :true";
+                    $params["true"] = true;
                     break;
                 case "yes":
                     $query .= "private = :true";
@@ -168,8 +168,8 @@ class PrivateImage extends Extension
                     }
                     break;
                 case "any":
-                    $query .= "private = :false OR owner_id = :private_owner_id";
-                    $params["false"] = false;
+                    $query .= "private != :true OR owner_id = :private_owner_id";
+                    $params["true"] = true;
                     $params["private_owner_id"] = $user->id;
                     break;
             }
diff --git a/ext/trash/main.php b/ext/trash/main.php
index c80eb7da..91dcf985 100644
--- a/ext/trash/main.php
+++ b/ext/trash/main.php
@@ -97,7 +97,7 @@ class Trash extends Extension
         $matches = [];
 
         if (is_null($event->term) && $this->no_trash_query($event->context)) {
-            $event->add_querylet(new Querylet("trash = :false", ["false"=>false]));
+            $event->add_querylet(new Querylet("trash != :true", ["true"=>true]));
         }
 
         if (is_null($event->term)) {