diff --git a/Classes/ContentObject/JsonContentObject.php b/Classes/ContentObject/JsonContentObject.php
index 7d3bb7ce..3ea68daa 100755
--- a/Classes/ContentObject/JsonContentObject.php
+++ b/Classes/ContentObject/JsonContentObject.php
@@ -108,8 +108,8 @@ public function cObjGet(array $setup, string $addKey = ''): array
                 if ((isset($conf['floatval']) && $conf['floatval']) || $theValue === 'FLOAT') {
                     $content[$theKey] = (float)$content[$theKey];
                 }
-                if ($theValue === 'BOOL') {
-                    $content[$theKey] = (bool)$content[$theKey];
+                if ((isset($conf['boolval']) && $conf['boolval']) || $theValue === 'BOOL') {
+                    $content[$theKey] = (bool)(int)$content[$theKey];
                 }
                 if ($theValue === 'USER_INT' || strpos((string)$content[$theKey], '<!--INT_SCRIPT.') === 0) {
                     $content[$theKey] = $this->headlessUserInt->wrap($content[$theKey]);
diff --git a/Tests/Unit/ContentObject/JsonContentObjectTest.php b/Tests/Unit/ContentObject/JsonContentObjectTest.php
index ae281a38..bc121ec0 100644
--- a/Tests/Unit/ContentObject/JsonContentObjectTest.php
+++ b/Tests/Unit/ContentObject/JsonContentObjectTest.php
@@ -145,6 +145,9 @@ public function dataProvider(): array
             [['dataProcessing.' => ['10' => 'FriendsOfTYPO3\Headless\Tests\Unit\ContentObject\DataProcessingExample', '10.' => ['as' => 'sites']]], json_encode(['SomeCustomProcessing'])],
             [['fields.' => ['test' => 'TEXT', 'test.' => ['value' => '1']]], json_encode(['test' => '1'])],
             [['fields.' => ['test' => 'TEXT', 'test.' => ['value' => '']]], json_encode(['test' => ''])],
+            [['fields.' => ['test' => 'TEXT', 'test.' => ['value' => '1', 'boolval' => 1]]], json_encode(['test' => true])],
+            [['fields.' => ['test' => 'TEXT', 'test.' => ['value' => '0', 'boolval' => 1]]], json_encode(['test' => false])],
+            [['fields.' => ['test' => 'TEXT', 'test.' => ['value' => 'false', 'boolval' => 1]]], json_encode(['test' => false])],
             [['fields.' => ['test' => 'TEXT', 'test.' => ['value' => '', 'ifEmptyReturnNull' => 0]]], json_encode(['test' => ''])],
             [['fields.' => ['test' => 'TEXT', 'test.' => ['value' => '', 'ifEmptyReturnNull' => 1]]], json_encode(['test' => null])],
             [['fields.' => ['test' => 'TEXT', 'test.' => ['value' => null, 'stdWrap.' => ['ifEmpty' => '{}']]]], json_encode(['test' => new \stdClass()])],