diff --git a/db_patches/patch-drop-wiki_timestamp-index.sql b/db_patches/patch-drop-wiki_timestamp-index.sql
deleted file mode 100644
index a6cffe5db..000000000
--- a/db_patches/patch-drop-wiki_timestamp-index.sql
+++ /dev/null
@@ -1,3 +0,0 @@
--- Drop wiki_timestamp index; it was previously created on MySQL only, it's now named afl_wiki_timestamp for uniformity
-
-DROP INDEX /*i*/wiki_timestamp ON /*_*/abuse_filter_log;
diff --git a/includes/AbuseFilterHooks.php b/includes/AbuseFilterHooks.php
index eb9db483d..eb62f2aed 100644
--- a/includes/AbuseFilterHooks.php
+++ b/includes/AbuseFilterHooks.php
@@ -503,10 +503,6 @@ class AbuseFilterHooks {
 			$updater->addExtensionUpdate( [ 'addField', 'abuse_filter',
 				'af_group', "$dir/db_patches/patch-af_group.sql", true ] );
 
-			$updater->dropExtensionIndex(
-				'abuse_filter_log', 'wiki_timestamp',
-				"$dir/db_patches/patch-drop-wiki_timestamp-index.sql"
-			);
 			$updater->addExtensionIndex(
 				'abuse_filter_log', 'afl_wiki_timestamp',
 				"$dir/db_patches/patch-global_logging_wiki-index.sql"