diff --git a/lib/core/settings.py b/lib/core/settings.py
index c057173ee..7fff77c8a 100755
--- a/lib/core/settings.py
+++ b/lib/core/settings.py
@@ -19,7 +19,7 @@ from lib.core.enums import DBMS_DIRECTORY_NAME
 from lib.core.enums import OS
 
 # sqlmap version (<major>.<minor>.<month>.<monthly commit>)
-VERSION = "1.1.8.5"
+VERSION = "1.1.8.6"
 TYPE = "dev" if VERSION.count('.') > 2 and VERSION.split('.')[-1] != '0' else "stable"
 TYPE_COLORS = {"dev": 33, "stable": 90, "pip": 34}
 VERSION_STRING = "sqlmap/%s#%s" % ('.'.join(VERSION.split('.')[:-1]) if VERSION.count('.') > 2 and VERSION.split('.')[-1] == '0' else VERSION, TYPE)
diff --git a/lib/request/basic.py b/lib/request/basic.py
index 9ca84f764..cebac6f82 100644
--- a/lib/request/basic.py
+++ b/lib/request/basic.py
@@ -46,7 +46,7 @@ from lib.utils.htmlentities import htmlEntities
 from thirdparty.chardet import detect
 from thirdparty.odict.odict import OrderedDict
 
-def forgeHeaders(items=None):
+def forgeHeaders(items=None, base=None):
     """
     Prepare HTTP Cookie, HTTP User-Agent and HTTP Referer headers to use when performing
     the HTTP requests
@@ -58,7 +58,7 @@ def forgeHeaders(items=None):
         if items[_] is None:
             del items[_]
 
-    headers = OrderedDict(conf.httpHeaders)
+    headers = OrderedDict(base or conf.httpHeaders)
     headers.update(items.items())
 
     class _str(str):
diff --git a/lib/request/connect.py b/lib/request/connect.py
index 3a64c98f1..aa2a1cc55 100644
--- a/lib/request/connect.py
+++ b/lib/request/connect.py
@@ -384,11 +384,7 @@ class Connect(object):
                 headers = forgeHeaders({HTTP_HEADER.COOKIE: cookie})
 
             if auxHeaders:
-                for key, value in auxHeaders.items():
-                    for _ in headers.keys():
-                        if _.upper() == key.upper():
-                            del headers[_]
-                    headers[key] = value
+                headers = forgeHeaders(auxHeaders, headers)
 
             for key, value in headers.items():
                 del headers[key]
diff --git a/txt/checksum.md5 b/txt/checksum.md5
index 9edd10129..c25a309ed 100644
--- a/txt/checksum.md5
+++ b/txt/checksum.md5
@@ -46,7 +46,7 @@ a44d7a4cc6c9a67a72d6af2f25f4ddac  lib/core/exception.py
 d8e9250f3775119df07e9070eddccd16  lib/core/replication.py
 785f86e3f963fa3798f84286a4e83ff2  lib/core/revision.py
 40c80b28b3a5819b737a5a17d4565ae9  lib/core/session.py
-6a496efd1775932aca395051ab950529  lib/core/settings.py
+7fba5bfabbc94b29a9998869faca440f  lib/core/settings.py
 d91291997d2bd2f6028aaf371bf1d3b6  lib/core/shell.py
 2ad85c130cc5f2b3701ea85c2f6bbf20  lib/core/subprocessng.py
 4a6ecdd8a6e44bb4737bd9bc7f9b5743  lib/core/target.py
@@ -66,9 +66,9 @@ ad74fc58fc7214802fd27067bce18dd2  lib/core/unescaper.py
 0b010b7cdb2e42b5aa0caa59607279ad  lib/parse/payloads.py
 997d0452e6fc22411f81a334511bcb3d  lib/parse/sitemap.py
 403d873f1d2fd0c7f73d83f104e41850  lib/request/basicauthhandler.py
-3ba1c71e68953d34fc526a9d79d5a457  lib/request/basic.py
+a06eddbdb529d4253c57250decb8e960  lib/request/basic.py
 ef48de622b0a6b4a71df64b0d2785ef8  lib/request/comparison.py
-e7ee2724486004129d4006f235b8556d  lib/request/connect.py
+38515a786ff9839436a864fb33dbc27b  lib/request/connect.py
 fb6b788d0016ab4ec5e5f661f0f702ad  lib/request/direct.py
 cc1163d38e9b7ee5db2adac6784c02bb  lib/request/dns.py
 5dcdb37823a0b5eff65cd1018bcf09e4  lib/request/httpshandler.py