diff --git a/lib/WebGUI/Operation/Spectre.pm b/lib/WebGUI/Operation/Spectre.pm
index ae5fc1220..03e1a2a89 100644
--- a/lib/WebGUI/Operation/Spectre.pm
+++ b/lib/WebGUI/Operation/Spectre.pm
@@ -168,7 +168,7 @@ sub www_spectreTest {
 	my $session = shift;
 	$session->http->setMimeType("text/plain");
 	$session->http->setCacheControl("none");
-	unless (isInSubnet($session->env->get("REMOTE_ADDR"), $session->config->get("spectreSubnets"))) {
+	unless (isInSubnet($session->env->getIp, $session->config->get("spectreSubnets"))) {
 		$session->errorHandler->security("make a Spectre workflow runner request, but we're only allowed to accept requests from ".join(",",@{$session->config->get("spectreSubnets")}).".");
         	return "subnet";
 	}