diff --git a/lib/core/common.py b/lib/core/common.py
index e970005c5..ea1574039 100644
--- a/lib/core/common.py
+++ b/lib/core/common.py
@@ -55,6 +55,7 @@ from lib.core.convert import htmlunescape
 from lib.core.convert import unicodeencode
 from lib.core.convert import urldecode
 from lib.core.convert import urlencode
+from lib.core.decorators import cachedmethod
 from lib.core.enums import CHARSET_TYPE
 from lib.core.enums import DBMS
 from lib.core.enums import EXPECTED
@@ -492,15 +493,6 @@ class Backend:
     def isOs(os):
         return Backend.getOs() is not None and Backend.getOs().lower() == os.lower()
 
-# Reference: http://code.activestate.com/recipes/325205-cache-decorator-in-python-24/
-def cachedmethod(f, cache={}):
-    def _(*args, **kwargs):
-        key = (f, tuple(args), frozenset(kwargs.items()))
-        if key not in cache:
-            cache[key] = f(*args, **kwargs)
-        return cache[key]
-    return _
-
 def paramToDict(place, parameters=None):
     """
     Split the parameters into names and values, check if these parameters
diff --git a/lib/core/decorators.py b/lib/core/decorators.py
new file mode 100644
index 000000000..8dc893a08
--- /dev/null
+++ b/lib/core/decorators.py
@@ -0,0 +1,8 @@
+# Reference: http://code.activestate.com/recipes/325205-cache-decorator-in-python-24/
+def cachedmethod(f, cache={}):
+    def _(*args, **kwargs):
+        key = (f, tuple(args), frozenset(kwargs.items()))
+        if key not in cache:
+            cache[key] = f(*args, **kwargs)
+        return cache[key]
+    return _
diff --git a/plugins/generic/users.py b/plugins/generic/users.py
index b6759baf3..b201355ec 100644
--- a/plugins/generic/users.py
+++ b/plugins/generic/users.py
@@ -294,7 +294,6 @@ class Users:
         else:
             for user in kb.data.cachedUsersPasswords:
                 kb.data.cachedUsersPasswords[user] = list(set(kb.data.cachedUsersPasswords[user]))
-                    
 
         message = "do you want to perform a dictionary-based attack "
         message += "against retrieved password hashes? [Y/n/q]"