diff --git a/html/cgi-bin/ovpnmain.cgi b/html/cgi-bin/ovpnmain.cgi
index 5af1b807e..7a2833ce6 100644
--- a/html/cgi-bin/ovpnmain.cgi
+++ b/html/cgi-bin/ovpnmain.cgi
@@ -5764,7 +5764,7 @@ END
# Adding DH parameter to chart
if (-f "${General::swroot}/ovpn/ca/dh1024.pem") {
- my @dhsubject = &System_output("/usr/bin/openssl", "dhparam", "-text", "-in", "${General::swroot}/ovpn/ca/dh1024.pem");
+ my @dhsubject = &General::system_output("/usr/bin/openssl", "dhparam", "-text", "-in", "${General::swroot}/ovpn/ca/dh1024.pem");
my $dhsubject;
foreach my $line (@dhsubject) {