diff --git a/lib/core/option.py b/lib/core/option.py
index 3e36991db..5b3505b8b 100644
--- a/lib/core/option.py
+++ b/lib/core/option.py
@@ -1234,9 +1234,8 @@ def __setKnowledgeBaseAttributes(flushAll=True):
     kb.authHeader      = None
     kb.bannerFp        = advancedDict()
 
-    kb.brute           = advancedDict()
-    kb.brute.tables    = []
-    kb.brute.columns   = []
+    kb.brute           = advancedDict({'tables':[], 'columns':[]})
+    kb.bruteMode       = False
 
     kb.cache           = advancedDict()
     kb.cache.content   = {}
diff --git a/lib/request/inject.py b/lib/request/inject.py
index 3578d2597..5ca1ee1c7 100644
--- a/lib/request/inject.py
+++ b/lib/request/inject.py
@@ -63,8 +63,9 @@ def __goInference(payload, expression, charsetType=None, firstChar=None, lastCha
 
     count, value = bisection(payload, expression, length, charsetType, firstChar, lastChar, dump)
 
-    debugMsg = "performed %d queries in %d seconds" % (count, calculateDeltaSeconds(start))
-    logger.debug(debugMsg)
+    if not kb.bruteMode:
+        debugMsg = "performed %d queries in %d seconds" % (count, calculateDeltaSeconds(start))
+        logger.debug(debugMsg)
 
     return value
 
diff --git a/lib/techniques/brute/use.py b/lib/techniques/brute/use.py
index 8fccbe678..08c9cc5c8 100644
--- a/lib/techniques/brute/use.py
+++ b/lib/techniques/brute/use.py
@@ -57,6 +57,7 @@ def tableExists(tableFile, regex=None):
     tbllock = threading.Lock()
     iolock = threading.Lock()
     kb.threadContinue = True
+    kb.bruteMode = True
 
     def tableExistsThread():
         while count[0] < length and kb.threadContinue:
@@ -140,6 +141,7 @@ def tableExists(tableFile, regex=None):
         except KeyboardInterrupt:
             raise sqlmapThreadException, "user aborted"
     finally:
+        kb.bruteMode = False
         kb.threadContinue = True
         kb.threadException = False
 
@@ -182,6 +184,7 @@ def columnExists(columnFile, regex=None):
     collock = threading.Lock()
     iolock = threading.Lock()
     kb.threadContinue = True
+    kb.bruteMode = True
 
     def columnExistsThread():
         while count[0] < length and kb.threadContinue:
@@ -256,6 +259,7 @@ def columnExists(columnFile, regex=None):
         except KeyboardInterrupt:
             raise sqlmapThreadException, "user aborted"
     finally:
+        kb.bruteMode = False
         kb.threadContinue = True
         kb.threadException = False
 
diff --git a/lib/techniques/error/use.py b/lib/techniques/error/use.py
index c3df29e57..70135ce21 100644
--- a/lib/techniques/error/use.py
+++ b/lib/techniques/error/use.py
@@ -307,7 +307,8 @@ def errorUse(expression, expected=None, resumeValue=True, dump=False):
 
     duration = calculateDeltaSeconds(start)
 
-    debugMsg = "performed %d queries in %d seconds" % (reqCount, duration)
-    logger.debug(debugMsg)
+    if not kb.bruteMode:
+        debugMsg = "performed %d queries in %d seconds" % (reqCount, duration)
+        logger.debug(debugMsg)
 
     return outputs
diff --git a/lib/techniques/inband/union/use.py b/lib/techniques/inband/union/use.py
index 4de88f599..194beff6c 100644
--- a/lib/techniques/inband/union/use.py
+++ b/lib/techniques/inband/union/use.py
@@ -269,7 +269,8 @@ def unionUse(expression, unpack=True, dump=False):
 
     duration = calculateDeltaSeconds(start)
 
-    debugMsg = "performed %d queries in %d seconds" % (reqCount, duration)
-    logger.debug(debugMsg)
+    if not kb.bruteMode:
+        debugMsg = "performed %d queries in %d seconds" % (reqCount, duration)
+        logger.debug(debugMsg)
 
     return value