diff --git a/lib/controller/controller.py b/lib/controller/controller.py
index e89f941de..022235460 100644
--- a/lib/controller/controller.py
+++ b/lib/controller/controller.py
@@ -452,7 +452,6 @@ def start():
                 checkNullConnection()
 
             if (len(kb.injections) == 0 or (len(kb.injections) == 1 and kb.injections[0].place is None)) and (kb.injection.place is None or kb.injection.parameter is None):
-
                 if not any((conf.string, conf.notString, conf.regexp)) and PAYLOAD.TECHNIQUE.BOOLEAN in conf.technique:
                     # NOTE: this is not needed anymore, leaving only to display
                     # a warning message to the user in case the page is not stable
diff --git a/lib/core/option.py b/lib/core/option.py
index 04c8e69fb..ba5ed87e3 100644
--- a/lib/core/option.py
+++ b/lib/core/option.py
@@ -21,6 +21,7 @@ import sys
 import tempfile
 import threading
 import time
+import traceback
 
 from lib.controller.checks import checkConnection
 from lib.core.common import Backend
@@ -921,6 +922,11 @@ def _setPreprocessFunctions():
                 try:
                     function(_urllib.request.Request("http://localhost"))
                 except:
+                    tbMsg = traceback.format_exc()
+
+                    if conf.debug:
+                        dataToStdout(tbMsg)
+
                     handle, filename = tempfile.mkstemp(prefix=MKSTEMP_PREFIX.PREPROCESS, suffix=".py")
                     os.close(handle)
 
diff --git a/lib/core/settings.py b/lib/core/settings.py
index d1592752b..e655452ac 100644
--- a/lib/core/settings.py
+++ b/lib/core/settings.py
@@ -18,7 +18,7 @@ from lib.core.enums import OS
 from thirdparty.six import unichr as _unichr
 
 # sqlmap version (<major>.<minor>.<month>.<monthly commit>)
-VERSION = "1.4.12.16"
+VERSION = "1.4.12.17"
 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)