diff --git a/app/finders/interesting_findings/multisite.rb b/app/finders/interesting_findings/multisite.rb
index 4ecc9e6d..54621668 100644
--- a/app/finders/interesting_findings/multisite.rb
+++ b/app/finders/interesting_findings/multisite.rb
@@ -12,8 +12,8 @@ module WPScan
           location = res.headers_hash['location']
 
           return unless [200, 302].include?(res.code)
-          return if res.code == 302 && location.include?('wp-login.php?action=register')
-          return unless res.code == 200 || res.code == 302 && location.include?('wp-signup.php')
+          return if res.code == 302 && location&.include?('wp-login.php?action=register')
+          return unless res.code == 200 || res.code == 302 && location&.include?('wp-signup.php')
 
           target.multisite = true