diff --git a/lib/controller/checks.py b/lib/controller/checks.py
index 074437fce..4d0bda2e0 100644
--- a/lib/controller/checks.py
+++ b/lib/controller/checks.py
@@ -1359,7 +1359,10 @@ def checkWaf():
         value = "" if not conf.parameters.get(PLACE.GET) else conf.parameters[PLACE.GET] + DEFAULT_GET_POST_DELIMITER
         value += "%s=%s" % (randomStr(), agent.addPayloadDelimiters(payload))
 
+    pushValue(kb.redirectChoice)
     pushValue(conf.timeout)
+
+    kb.redirectChoice = REDIRECTION.YES
     conf.timeout = IDS_WAF_CHECK_TIMEOUT
 
     try:
@@ -1368,7 +1371,9 @@ def checkWaf():
         retVal = True
     finally:
         kb.matchRatio = None
+
         conf.timeout = popValue()
+        kb.redirectChoice = popValue()
 
     if retVal:
         warnMsg = "heuristics detected that the target "
diff --git a/lib/core/settings.py b/lib/core/settings.py
index 2a7164760..c5a45ea51 100644
--- 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 = "1.2.8.20"
+VERSION = "1.2.8.21"
 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/txt/checksum.md5 b/txt/checksum.md5
index e90087a2c..7b6c3efae 100644
--- a/txt/checksum.md5
+++ b/txt/checksum.md5
@@ -22,7 +22,7 @@ e4805169a081b834ca51a60a150c7247  extra/shutils/newlines.py
 1e5532ede194ac9c083891c2f02bca93  extra/sqlharvest/__init__.py
 b3e60ea4e18a65c48515d04aab28ff68  extra/sqlharvest/sqlharvest.py
 3459c562a6abb9b4bdcc36925f751f3e  lib/controller/action.py
-bc3800ec099df253968b3a7fc1ffce44  lib/controller/checks.py
+7493c782345a60f6c00c9281d51a494e  lib/controller/checks.py
 c414cecdb0472c92cf50ed5b01e4438c  lib/controller/controller.py
 c7443613a0a2505b1faec931cee2a6ef  lib/controller/handler.py
 1e5532ede194ac9c083891c2f02bca93  lib/controller/__init__.py
@@ -48,7 +48,7 @@ c8c386d644d57c659d74542f5f57f632  lib/core/patch.py
 0c3eef46bdbf87e29a3f95f90240d192  lib/core/replication.py
 a7db43859b61569b601b97f187dd31c5  lib/core/revision.py
 fcb74fcc9577523524659ec49e2e964b  lib/core/session.py
-7784e72dc2d0a290d2512f970dc7dc0f  lib/core/settings.py
+8b9c8ae316a1cdf5809b163d7d451ca5  lib/core/settings.py
 dd68a9d02fccb4fa1428b20e15b0db5d  lib/core/shell.py
 a7edc9250d13af36ac0108f259859c19  lib/core/subprocessng.py
 815d1cf27f0f8738d81531e73149867d  lib/core/target.py