diff --git a/db/patches/mathlatexml.mathml-length-adjustment.mysql.sql b/db/patches/mathlatexml.mathml-length-adjustment.mysql.sql
deleted file mode 100644
index 8bbb86c0c..000000000
--- a/db/patches/mathlatexml.mathml-length-adjustment.mysql.sql
+++ /dev/null
@@ -1 +0,0 @@
-ALTER TABLE /*_*/mathlatexml MODIFY  math_mathml mediumtext;
\ No newline at end of file
diff --git a/src/Hooks.php b/src/Hooks.php
index ecde8e809..ad0052623 100644
--- a/src/Hooks.php
+++ b/src/Hooks.php
@@ -50,11 +50,6 @@ class Hooks {
 		}
 
 		if ( $type === 'mysql' ) {
-			$updater->modifyExtensionField(
-				'mathlatexml',
-				'math_mathml',
-				__DIR__ . '/../db/patches/mathlatexml.mathml-length-adjustment.mysql.sql'
-			);
 			$updater->addExtensionField(
 				'mathoid',
 				'math_png',