diff --git a/lib/core/option.py b/lib/core/option.py
index dc0530b14..64722e1e2 100755
--- a/lib/core/option.py
+++ b/lib/core/option.py
@@ -897,14 +897,15 @@ def _setTamperingFunctions():
         for script in re.split(PARAMETER_SPLITTING_REGEX, conf.tamper):
             found = False
 
+            path = paths.SQLMAP_TAMPER_PATH.encode(sys.getfilesystemencoding() or UNICODE_ENCODING)
             script = script.strip().encode(sys.getfilesystemencoding() or UNICODE_ENCODING)
 
             try:
                 if not script:
                     continue
 
-                elif os.path.exists(os.path.join(paths.SQLMAP_TAMPER_PATH, script if script.endswith(".py") else "%s.py" % script)):
-                    script = os.path.join(paths.SQLMAP_TAMPER_PATH, script if script.endswith(".py") else "%s.py" % script)
+                elif os.path.exists(os.path.join(path, script if script.endswith(".py") else "%s.py" % script)):
+                    script = os.path.join(path, script if script.endswith(".py") else "%s.py" % script)
 
                 elif not os.path.exists(script):
                     errMsg = "tamper script '%s' does not exist" % script
@@ -932,7 +933,7 @@ def _setTamperingFunctions():
                 sys.path.insert(0, dirname)
 
             try:
-                module = __import__(filename[:-3])
+                module = __import__(filename[:-3].encode(sys.getfilesystemencoding() or UNICODE_ENCODING))
             except (ImportError, SyntaxError), ex:
                 raise SqlmapSyntaxException("cannot import tamper script '%s' (%s)" % (filename[:-3], getSafeExString(ex)))
 
@@ -1005,7 +1006,7 @@ def _setWafFunctions():
             try:
                 if filename[:-3] in sys.modules:
                     del sys.modules[filename[:-3]]
-                module = __import__(filename[:-3])
+                module = __import__(filename[:-3].encode(sys.getfilesystemencoding() or UNICODE_ENCODING))
             except ImportError, msg:
                 raise SqlmapSyntaxException("cannot import WAF script '%s' (%s)" % (filename[:-3], msg))
 
diff --git a/lib/core/settings.py b/lib/core/settings.py
index 7eccd3cc8..3508e11bd 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 = "1.1.1.16"
+VERSION = "1.1.1.17"
 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)
diff --git a/txt/checksum.md5 b/txt/checksum.md5
index 967c80690..d61c4f17a 100644
--- a/txt/checksum.md5
+++ b/txt/checksum.md5
@@ -39,13 +39,13 @@ a8143dab9d3a27490f7d49b6b29ea530  lib/core/data.py
 310efc965c862cfbd7b0da5150a5ad36  lib/core/__init__.py
 9ba39bf66e9ecd469446bdbbeda906c3  lib/core/log.py
 e544108e2238d756c94a240e8a1ce061  lib/core/optiondict.py
-796eb85d5f6e7657e40d584c018d6f5b  lib/core/option.py
+42b491edce8822786c32f77a9b7fe5be  lib/core/option.py
 5f2f56e6c5f274408df61943f1e080c0  lib/core/profiling.py
 40be71cd774662a7b420caeb7051e7d5  lib/core/readlineng.py
 d8e9250f3775119df07e9070eddccd16  lib/core/replication.py
 785f86e3f963fa3798f84286a4e83ff2  lib/core/revision.py
 40c80b28b3a5819b737a5a17d4565ae9  lib/core/session.py
-61c11d06560e719de37b451f3996b47d  lib/core/settings.py
+6f0aa9e9564fe6df51a10d6ecd3aa6d7  lib/core/settings.py
 d91291997d2bd2f6028aaf371bf1d3b6  lib/core/shell.py
 2ad85c130cc5f2b3701ea85c2f6bbf20  lib/core/subprocessng.py
 afd0636d2e93c23f4f0a5c9b6023ea17  lib/core/target.py