diff --git a/doc/ChangeLog b/doc/ChangeLog
index a5b60eb6e..b0e01a7ee 100644
--- a/doc/ChangeLog
+++ b/doc/ChangeLog
@@ -8,14 +8,14 @@ sqlmap (0.9-1) stable; urgency=low
   * Extended old '--dump -C' functionality to be able to search for
     specific database(s), table(s) and column(s), --search switch
     (Bernardo).
-  * Added support to fetch unicode data (Miroslav).
+  * Added support to fetch unicode data (Bernardo and Miroslav).
   * Added safe URL feature, --safe-url and --safe-freq (Miroslav).
   * Added --use-between switch to use BETWEEN syntax in inferencial
     statement and bypass firewalls filtering '>' character (Bernardo and
     Miroslav).
   * Support for customizable HTTP redirections (Bernardo).
   * Several bugs fixed (Bernardo and Miroslav).
-  * Major code refactoring (Bernardo).
+  * Major code refactoring (Bernardo and Miroslav).
   * User's manual updated (Bernardo).
 
  -- Bernardo Damele A. G. <bernardo.damele@gmail.com>  Day, DD MMM 2010 10:00:00 +0000
diff --git a/lib/core/common.py b/lib/core/common.py
index 11a1a90c6..25010b7af 100644
--- a/lib/core/common.py
+++ b/lib/core/common.py
@@ -1221,10 +1221,10 @@ def initCommonOutputs():
                 key = line[1:-1]
             elif key:
                 if key not in kb.commonOutputs:
-                    kb.commonOutputs[key] = []
+                    kb.commonOutputs[key] = set()
 
                 if line not in kb.commonOutputs[key]:
-                    kb.commonOutputs[key].append(line)
+                    kb.commonOutputs[key].add(line)
 
     cfile.close()