diff --git a/installer/data/mysql/db_revs/250501001.pl b/installer/data/mysql/db_revs/250501001.pl
index da2e544841..e87c5cba15 100755
--- a/installer/data/mysql/db_revs/250501001.pl
+++ b/installer/data/mysql/db_revs/250501001.pl
@@ -8,82 +8,46 @@ return {
         my ($args) = @_;
         my ( $dbh, $out ) = @$args{qw(dbh out)};
 
-        my $col_type_borrowers = $dbh->selectrow_array(
+        $dbh->do(
             q{
-              SELECT COLUMN_TYPE
-              FROM INFORMATION_SCHEMA.COLUMNS
-              WHERE TABLE_SCHEMA = DATABASE()
-                AND TABLE_NAME = 'borrowers'
-                AND COLUMN_NAME = 'checkprevcheckout'
-            }
-        );
-
-        if ( $col_type_borrowers !~ /^enum/i ) {
-            $dbh->do(
-                q{
                     UPDATE borrowers
                     SET checkprevcheckout = 'inherit'
                     WHERE checkprevcheckout NOT IN ('yes','no','inherit');
                 }
-            );
-            $dbh->do(
-                q{
+        );
+        $dbh->do(
+            q{
                     ALTER TABLE borrowers
                     MODIFY COLUMN `checkprevcheckout` enum('yes', 'no', 'inherit') NOT NULL DEFAULT 'inherit' COMMENT 'produce a warning for this patron if this item has previously been checked out to this patron if ''yes'', not if ''no'', defer to category setting if ''inherit''.'
                 }
-            );
-        }
-
-        my $col_type_categories = $dbh->selectrow_array(
-            q{
-              SELECT COLUMN_TYPE
-              FROM INFORMATION_SCHEMA.COLUMNS
-              WHERE TABLE_SCHEMA = DATABASE()
-                AND TABLE_NAME = 'categories'
-                AND COLUMN_NAME = 'checkprevcheckout'
-            }
         );
 
-        if ( $col_type_categories !~ /^enum/i ) {
-            $dbh->do(
-                q{
+        $dbh->do(
+            q{
                     UPDATE categories
                     SET checkprevcheckout = 'inherit'
                     WHERE checkprevcheckout NOT IN ('yes','no','inherit');
                 }
-            );
-            $dbh->do(
-                q{
+        );
+        $dbh->do(
+            q{
                     ALTER TABLE categories
                     MODIFY COLUMN `checkprevcheckout` enum('yes', 'no', 'inherit') NOT NULL DEFAULT 'inherit' COMMENT 'produce a warning for this patron category if this item has previously been checked out to this patron if ''yes'', not if ''no'', defer to syspref setting if ''inherit''.'
                 }
-            );
-        }
-
-        my $col_type_deletedborrowers = $dbh->selectrow_array(
-            q{
-              SELECT COLUMN_TYPE
-              FROM INFORMATION_SCHEMA.COLUMNS
-              WHERE TABLE_SCHEMA = DATABASE()
-                AND TABLE_NAME = 'deletedborrowers'
-                AND COLUMN_NAME = 'checkprevcheckout'
-            }
         );
 
-        if ( $col_type_deletedborrowers !~ /^enum/i ) {
-            $dbh->do(
-                q{
+        $dbh->do(
+            q{
                     UPDATE deletedborrowers
                     SET checkprevcheckout = 'inherit'
                     WHERE checkprevcheckout NOT IN ('yes','no','inherit');
                 }
-            );
-            $dbh->do(
-                q{
+        );
+        $dbh->do(
+            q{
                     ALTER TABLE deletedborrowers
                     MODIFY COLUMN `checkprevcheckout` enum('yes', 'no', 'inherit') NOT NULL DEFAULT 'inherit' COMMENT 'produce a warning for this patron if this item has previously been checked out to this patron if ''yes'', not if ''no'', defer to category setting if ''inherit''.'
                 }
-            );
-        }
+        );
     },
 };