diff --git a/koha-tmpl/opac-tmpl/bootstrap/en/modules/opac-search-history.tt b/koha-tmpl/opac-tmpl/bootstrap/en/modules/opac-search-history.tt
index 229e3294d2..44d44d4d39 100644
--- a/koha-tmpl/opac-tmpl/bootstrap/en/modules/opac-search-history.tt
+++ b/koha-tmpl/opac-tmpl/bootstrap/en/modules/opac-search-history.tt
@@ -86,7 +86,7 @@
                 <legend class="sr-only">Toolbar control</legend>
 
                 [% INCLUDE 'toolbar_controls' %]
-                <input type="hidden" name="action" value="delete" />
+                <input type="hidden" name="op" value="cud-delete" />
                 <table class="historyt table table-bordered table-striped">
                     <caption class="sr-only">Current session</caption>
                     <thead>
@@ -134,7 +134,7 @@
                 <legend class="sr-only">Toolbar control</legend>
                 [% INCLUDE 'toolbar_controls' %]
 
-                <input type="hidden" name="action" value="delete" />
+                <input type="hidden" name="op" value="cud-delete" />
                 <table class="historyt table table-bordered table-striped">
                     <caption class="sr-only">Previous sessions</caption>
                     <thead>
@@ -189,7 +189,7 @@
                 [% INCLUDE 'csrf-token.inc' %]
                 <legend class="sr-only">Toolbar control</legend>
                 [% INCLUDE 'toolbar_controls' %]
-                <input type="hidden" name="action" value="delete" />
+                <input type="hidden" name="op" value="cud-delete" />
                 <table class="historyt table table-bordered table-striped">
                     <caption class="sr-only">Current session</caption>
                     <thead>
@@ -231,7 +231,7 @@
                 [% INCLUDE 'csrf-token.inc' %]
                 <legend class="sr-only">Toolbar control</legend>
                 [% INCLUDE 'toolbar_controls' %]
-                <input type="hidden" name="action" value="delete" />
+                <input type="hidden" name="op" value="cud-delete" />
                 <table class="historyt table table-bordered table-striped">
                     <caption class="sr-only">Previous sessions</caption>
                     <thead>
diff --git a/opac/opac-search-history.pl b/opac/opac-search-history.pl
index b5a53c6011..85f807fd48 100755
--- a/opac/opac-search-history.pl
+++ b/opac/opac-search-history.pl
@@ -45,13 +45,13 @@ unless ( C4::Context->preference("EnableOpacSearchHistory") ) {
 }
 
 my $type = $cgi->param('type');
-my $action = $cgi->param('action') || q{};
+my $op = $cgi->param('op') || q{};
 my $previous = $cgi->param('previous');
 
 # If the user is not logged in, we deal with the session
 unless ( $loggedinuser ) {
     # Deleting search history
-    if ( $action eq 'cud-delete') {
+    if ( $op eq 'cud-delete') {
         # Deleting session's search history
         my @id = $cgi->multi_param('id');
         my $all = not scalar( @id );
@@ -96,7 +96,7 @@ unless ( $loggedinuser ) {
     my $dbh = C4::Context->dbh;
 
     # Deleting search history
-    if ( $action eq 'cud-delete' ) {
+    if ( $op eq 'cud-delete' ) {
         my @id = $cgi->multi_param('id');
         if ( @id ) {
             C4::Search::History::delete(