lib/nmap/os.rb in ruby-nmap-0.9.0 vs lib/nmap/os.rb in ruby-nmap-0.9.1

@@ -107,10 +107,12 @@
     #
     # @return [String]
     #   The OS fingerprint.
     #
     def fingerprint
-      @fingerprint ||= @node.at("osfingerprint/@fingerprint").inner_text
+      @fingerprint ||= if (fingerprint = @node.at("osfingerprint/@fingerprint"))
+                         fingerprint.inner_text
+                       end
     end
 
     #
     # Parses the OS match information.
     #