diff --git a/lib/core/agent.py b/lib/core/agent.py
index e2c8eac70..e645f46e9 100644
--- a/lib/core/agent.py
+++ b/lib/core/agent.py
@@ -274,7 +274,7 @@ class Agent(object):
             where = kb.injection.data[kb.technique].where if where is None else where
             comment = kb.injection.data[kb.technique].comment if comment is None else comment
 
-        if Backend.getIdentifiedDbms() == DBMS.ACCESS and "--" in comment:
+        if Backend.getIdentifiedDbms() == DBMS.ACCESS and "--" in (comment or ""):
             comment = queries[DBMS.ACCESS].comment.query
 
         if comment is not None:
diff --git a/lib/core/settings.py b/lib/core/settings.py
index 43d022053..be7a050af 100644
--- a/lib/core/settings.py
+++ b/lib/core/settings.py
@@ -20,7 +20,7 @@ from lib.core.enums import OS
 from lib.core.revision import getRevisionNumber
 
 # sqlmap version (<major>.<minor>.<month>.<monthly commit>)
-VERSION = "1.0.4.8"
+VERSION = "1.0.4.9"
 REVISION = getRevisionNumber()
 STABLE = VERSION.count('.') <= 2
 VERSION_STRING = "sqlmap/%s#%s" % (VERSION, "stable" if STABLE else "dev")