diff --git a/job_creator.php b/job_creator.php
index 400418c..47dbb99 100644
--- a/job_creator.php
+++ b/job_creator.php
@@ -186,7 +186,7 @@ private function isAllowedPhpVersion(string $phpVersion)
             }
             $this->composerPhpConstraint = $json->require->php;
         }
-        $constraints = explode('||', $this->composerPhpConstraint);
+        $constraints = preg_split('#(\|\||\|)#', $this->composerPhpConstraint);
         $constraints = array_map(function($php) {
             return preg_replace('#([0-9\.\*]+) *- *([0-9\.\*]+)#', '$1-$2', trim($php));
         }, $constraints);
diff --git a/tests/JobCreatorTest.php b/tests/JobCreatorTest.php
index bed43f4..04117bb 100644
--- a/tests/JobCreatorTest.php
+++ b/tests/JobCreatorTest.php
@@ -1027,6 +1027,52 @@ public function provideCreateJsonForConfig(): array
                     ],
                 ],
             ],
+            'cms 4 old composer pipe' => [
+                'branch' => '1.6',
+                'phpConstraint' => '7.4 | 8.0',
+                'expected' => [
+                    [
+                        'installer_version' => '',
+                        'php' => '7.4',
+                        'db' => DB_MYSQL_57,
+                        'composer_require_extra' => '',
+                        'composer_args' => '--prefer-lowest',
+                        'name_suffix' => '',
+                        'phpunit' => 'true',
+                        'phpunit_suite' => 'all',
+                        'phplinting' => 'false',
+                        'phpcoverage' => 'false',
+                        'endtoend' => 'false',
+                        'endtoend_suite' => 'root',
+                        'endtoend_config' => '',
+                        'endtoend_tags' => '',
+                        'js' => 'false',
+                        'doclinting' => 'false',
+                        'needs_full_setup' => 'false',
+                        'name' => '7.4 prf-low mysql57 phpunit all',
+                    ],
+                    [
+                        'installer_version' => '',
+                        'php' => '8.0',
+                        'db' => DB_MYSQL_57_PDO,
+                        'composer_require_extra' => '',
+                        'composer_args' => '',
+                        'name_suffix' => '',
+                        'phpunit' => 'true',
+                        'phpunit_suite' => 'all',
+                        'phplinting' => 'false',
+                        'phpcoverage' => 'false',
+                        'endtoend' => 'false',
+                        'endtoend_suite' => 'root',
+                        'endtoend_config' => '',
+                        'endtoend_tags' => '',
+                        'js' => 'false',
+                        'doclinting' => 'false',
+                        'needs_full_setup' => 'false',
+                        'name' => '8.0 mysql57pdo phpunit all',
+                    ],
+                ],
+            ],
             'cms 5.1+' => [
                 'branch' => '2.1',
                 'phpConstraint' => '^8.1',