diff --git a/centreon-plugins/apps/pvx/restapi/custom/api.pm b/centreon-plugins/apps/pvx/restapi/custom/api.pm
index 4e3a0b3bc..6e348e03b 100644
--- a/centreon-plugins/apps/pvx/restapi/custom/api.pm
+++ b/centreon-plugins/apps/pvx/restapi/custom/api.pm
@@ -167,8 +167,8 @@ sub query_range {
 
     my $result = $self->get_endpoint(url_path => '/query?expr=' . $uri->encode($query));
 
-    if (defined( $self->{option_results}->{default_value} ) && $options{filter} ne '' && !exists( $result->{data} )) {
-        $options{filter} =~ /([^\s\\]+) = \"([^\s\\]+)\"/;
+    if (defined($self->{option_results}->{default_value}) && $options{filter} ne '' && !exists($result->{data})) {
+        $options{filter} =~ /\s*([^\s\\]+)\s*=\s*\"(.*)\"/;
         $result->{data} = [
             { key => [ { value => $2 } ] },
             { values => [ { value => $self->{option_results}->{default_value} } ] }