diff --git a/.phpcs.xml b/.phpcs.xml
index 7548bdabf11..272e0f5ff79 100644
--- a/.phpcs.xml
+++ b/.phpcs.xml
@@ -78,7 +78,6 @@
 			any new occurrences.
 		-->
 		<exclude-pattern>*/includes/Feed\.php</exclude-pattern>
-		<exclude-pattern>*/includes/jobqueue/JobSpecification\.php</exclude-pattern>
 		<exclude-pattern>*/includes/RevisionList\.php</exclude-pattern>
 		<exclude-pattern>*/includes/installer/PhpBugTests\.php</exclude-pattern>
 		<exclude-pattern>*/includes/specials/SpecialMostinterwikis\.php</exclude-pattern>
@@ -238,7 +237,6 @@
 		<exclude-pattern>*/includes/htmlform/HTMLFormElement\.php</exclude-pattern>
 		<exclude-pattern>*/includes/jobqueue/aggregator/JobQueueAggregator\.php</exclude-pattern>
 		<exclude-pattern>*/includes/jobqueue/JobQueue\.php</exclude-pattern>
-		<exclude-pattern>*/includes/jobqueue/JobSpecification\.php</exclude-pattern>
 		<exclude-pattern>*/includes/libs/filebackend/FileBackendStore\.php</exclude-pattern>
 		<exclude-pattern>*/includes/libs/filebackend/FSFileBackend\.php</exclude-pattern>
 		<exclude-pattern>*/includes/libs/filebackend/SwiftFileBackend\.php</exclude-pattern>
diff --git a/autoload.php b/autoload.php
index 2559552e3ff..348a0d20502 100644
--- a/autoload.php
+++ b/autoload.php
@@ -647,7 +647,7 @@ $wgAutoloadLocalClasses = [
 	'IEContentAnalyzer' => __DIR__ . '/includes/libs/mime/IEContentAnalyzer.php',
 	'IEUrlExtension' => __DIR__ . '/includes/libs/IEUrlExtension.php',
 	'IExpiringStore' => __DIR__ . '/includes/libs/objectcache/IExpiringStore.php',
-	'IJobSpecification' => __DIR__ . '/includes/jobqueue/JobSpecification.php',
+	'IJobSpecification' => __DIR__ . '/includes/jobqueue/IJobSpecification.php',
 	'ILocalizedException' => __DIR__ . '/includes/exception/ILocalizedException.php',
 	'IMaintainableDatabase' => __DIR__ . '/includes/libs/rdbms/database/IMaintainableDatabase.php',
 	'IP' => __DIR__ . '/includes/libs/IP.php',
diff --git a/includes/jobqueue/IJobSpecification.php b/includes/jobqueue/IJobSpecification.php
new file mode 100644
index 00000000000..8bc1bc3f746
--- /dev/null
+++ b/includes/jobqueue/IJobSpecification.php
@@ -0,0 +1,84 @@
+<?php
+/**
+ * Job queue task description base code.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, write to the Free Software Foundation, Inc.,
+ * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
+ * http://www.gnu.org/copyleft/gpl.html
+ *
+ * @file
+ */
+
+/**
+ * Job queue task description interface
+ *
+ * @ingroup JobQueue
+ * @since 1.23
+ */
+interface IJobSpecification {
+	/**
+	 * @return string Job type
+	 */
+	public function getType();
+
+	/**
+	 * @return array
+	 */
+	public function getParams();
+
+	/**
+	 * @return int|null UNIX timestamp to delay running this job until, otherwise null
+	 */
+	public function getReleaseTimestamp();
+
+	/**
+	 * @return bool Whether only one of each identical set of jobs should be run
+	 */
+	public function ignoreDuplicates();
+
+	/**
+	 * Subclasses may need to override this to make duplication detection work.
+	 * The resulting map conveys everything that makes the job unique. This is
+	 * only checked if ignoreDuplicates() returns true, meaning that duplicate
+	 * jobs are supposed to be ignored.
+	 *
+	 * @return array Map of key/values
+	 */
+	public function getDeduplicationInfo();
+
+	/**
+	 * @see JobQueue::deduplicateRootJob()
+	 * @return array
+	 * @since 1.26
+	 */
+	public function getRootJobParams();
+
+	/**
+	 * @see JobQueue::deduplicateRootJob()
+	 * @return bool
+	 * @since 1.22
+	 */
+	public function hasRootJobParams();
+
+	/**
+	 * @see JobQueue::deduplicateRootJob()
+	 * @return bool Whether this is job is a root job
+	 */
+	public function isRootJob();
+
+	/**
+	 * @return Title Descriptive title (this can simply be informative)
+	 */
+	public function getTitle();
+}
diff --git a/includes/jobqueue/JobSpecification.php b/includes/jobqueue/JobSpecification.php
index d060c1cf65b..4abbc6db2fb 100644
--- a/includes/jobqueue/JobSpecification.php
+++ b/includes/jobqueue/JobSpecification.php
@@ -20,69 +20,6 @@
  * @file
  */
 
-/**
- * Job queue task description interface
- *
- * @ingroup JobQueue
- * @since 1.23
- */
-interface IJobSpecification {
-	/**
-	 * @return string Job type
-	 */
-	public function getType();
-
-	/**
-	 * @return array
-	 */
-	public function getParams();
-
-	/**
-	 * @return int|null UNIX timestamp to delay running this job until, otherwise null
-	 */
-	public function getReleaseTimestamp();
-
-	/**
-	 * @return bool Whether only one of each identical set of jobs should be run
-	 */
-	public function ignoreDuplicates();
-
-	/**
-	 * Subclasses may need to override this to make duplication detection work.
-	 * The resulting map conveys everything that makes the job unique. This is
-	 * only checked if ignoreDuplicates() returns true, meaning that duplicate
-	 * jobs are supposed to be ignored.
-	 *
-	 * @return array Map of key/values
-	 */
-	public function getDeduplicationInfo();
-
-	/**
-	 * @see JobQueue::deduplicateRootJob()
-	 * @return array
-	 * @since 1.26
-	 */
-	public function getRootJobParams();
-
-	/**
-	 * @see JobQueue::deduplicateRootJob()
-	 * @return bool
-	 * @since 1.22
-	 */
-	public function hasRootJobParams();
-
-	/**
-	 * @see JobQueue::deduplicateRootJob()
-	 * @return bool Whether this is job is a root job
-	 */
-	public function isRootJob();
-
-	/**
-	 * @return Title Descriptive title (this can simply be informative)
-	 */
-	public function getTitle();
-}
-
 /**
  * Job queue task description base code
  *