diff --git a/lib/takeover/abstraction.py b/lib/takeover/abstraction.py
index fd8c67154..b82c8fc86 100644
--- a/lib/takeover/abstraction.py
+++ b/lib/takeover/abstraction.py
@@ -107,7 +107,7 @@ class Abstraction(Web, UDF, xp_cmdshell):
                 errMsg = "feature not yet implemented for the back-end DBMS"
                 raise sqlmapUnsupportedFeatureException, errMsg
 
-            infoMsg  = "calling %s OS shell. To quit type " % kb.os or "Windows"
+            infoMsg  = "calling %s OS shell. To quit type " % (kb.os or "Windows")
             infoMsg += "'x' or 'q' and press ENTER"
             logger.info(infoMsg)