diff --git a/etc/checksum/md5sum.md5 b/etc/checksum/md5sum.md5
index c01b719..03e9516 100644
--- a/etc/checksum/md5sum.md5
+++ b/etc/checksum/md5sum.md5
@@ -65,7 +65,7 @@ d41d8cd98f00b204e9800998ecf8427e  ./lib/attacks/__init__.py
 d2846e039fefee741db24dd64f7bd50e  ./lib/attacks/whois_lookup/whois.py
 d2846e039fefee741db24dd64f7bd50e  ./lib/attacks/admin_panel_finder/__init__.py
 b5cd5e913cc62112776153bdf0f60fa4  ./lib/attacks/xss_scan/__init__.py
-fa40d9681c7c3024bd50ad12ef231d6d  ./lib/attacks/nmap_scan/__init__.py
+63c45495ec1ed2e98946bef514d8805e  ./lib/attacks/nmap_scan/__init__.py
 216999fa0e84866d5c1d96d5676034e4  ./lib/attacks/nmap_scan/nmap_opts.py
 e11185d7dd3d6c94d7f4ddbcfd1d26cc  ./lib/header_check/__init__.py
 45fc5f5847a3a9909cbd5e0add7b4586  ./lib/core/common.py
diff --git a/lib/attacks/nmap_scan/__init__.py b/lib/attacks/nmap_scan/__init__.py
index 2678bee..2e92fee 100644
--- a/lib/attacks/nmap_scan/__init__.py
+++ b/lib/attacks/nmap_scan/__init__.py
@@ -30,6 +30,8 @@ class NmapHook(object):
         """
         get all the information from the scan
         """
+        if isinstance(self.opts, (list, tuple)):
+            self.opts = ""
         scanned_data = self.NM.scan(self.ip, arguments=self.opts)
         if self.pretty:
             scanned_data = json.dumps(scanned_data, indent=4, sort_keys=True)