diff --git a/lib/controller/checks.py b/lib/controller/checks.py
index 4707f6dc5..4ab2fef21 100644
--- a/lib/controller/checks.py
+++ b/lib/controller/checks.py
@@ -527,7 +527,7 @@ def checkSqlInjection(place, parameter, value):
                                             continue
                                     elif kb.heuristicPage and not any((conf.string, conf.notString, conf.regexp, conf.code, kb.nullConnection)):
                                         _ = comparison(kb.heuristicPage, None, getRatioValue=True)
-                                        if _ > kb.matchRatio:
+                                        if (_ or 0) > (kb.matchRatio or 0):
                                             kb.matchRatio = _
                                             logger.debug("adjusting match ratio for current parameter to %.3f" % kb.matchRatio)
 
diff --git a/lib/core/settings.py b/lib/core/settings.py
index 99440e488..1cf92055e 100644
--- a/lib/core/settings.py
+++ b/lib/core/settings.py
@@ -18,7 +18,7 @@ from lib.core.enums import OS
 from thirdparty import six
 
 # sqlmap version (<major>.<minor>.<month>.<monthly commit>)
-VERSION = "1.3.5.60"
+VERSION = "1.3.5.61"
 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)