diff --git a/tools/manage-marc-import.pl b/tools/manage-marc-import.pl
index e48b479029..e74d9255ab 100755
--- a/tools/manage-marc-import.pl
+++ b/tools/manage-marc-import.pl
@@ -90,7 +90,7 @@ if ($op eq "") {
 } elsif ($op eq "commit-batch") {
     my $frameworkcode = $input->param('framework');
     my $overlay_framework = $input->param('overlay_framework');
-    $overlay_framework = undef if $overlay_framework = '_USE_ORIG';
+    $overlay_framework = undef if $overlay_framework eq '_USE_ORIG_';
     try {
         my $job_id = Koha::BackgroundJob::MARCImportCommitBatch->new->enqueue(
             {