diff --git a/lib/core/settings.py b/lib/core/settings.py
index f3102ffdd..bd955a1e2 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 = "1.3.10.10"
+VERSION = "1.3.10.11"
 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/plugins/generic/users.py b/plugins/generic/users.py
index 5599404aa..5985d3b3b 100644
--- a/plugins/generic/users.py
+++ b/plugins/generic/users.py
@@ -600,7 +600,8 @@ class Users(object):
 
                     # In Firebird we get one letter for each privilege
                     elif Backend.isDbms(DBMS.FIREBIRD):
-                        privileges.add(FIREBIRD_PRIVS[privilege.strip()])
+                        if privilege.strip() in FIREBIRD_PRIVS:
+                            privileges.add(FIREBIRD_PRIVS[privilege.strip()])
 
                     # In Informix we get one letter for the highest privilege
                     elif Backend.isDbms(DBMS.INFORMIX):