diff --git a/plugins/dbms/mysql/takeover.py b/plugins/dbms/mysql/takeover.py
index 15f875388..e6e79e3db 100644
--- a/plugins/dbms/mysql/takeover.py
+++ b/plugins/dbms/mysql/takeover.py
@@ -42,7 +42,7 @@ class Takeover(GenericTakeover):
                 # Reference: http://dev.mysql.com/doc/refman/5.1/en/server-options.html#option_mysqld_basedir
                 self.__basedir = unArrayizeValue(inject.getValue("SELECT @@basedir"))
 
-                if re.search("^[\w]\:[\/\\\\]+", self.__basedir, re.I):
+                if re.search("^[\w]\:[\/\\\\]+", (self.__basedir or ""), re.I):
                     Backend.setOs(OS.WINDOWS)
                 else:
                     Backend.setOs(OS.LINUX)