diff --git a/lib/techniques/inband/union/test.py b/lib/techniques/inband/union/test.py
index 318fd3c64..1775e73e3 100644
--- a/lib/techniques/inband/union/test.py
+++ b/lib/techniques/inband/union/test.py
@@ -100,6 +100,8 @@ def __unionTestByCharBruteforce(comment, place, parameter, value, prefix, suffix
     validPayload = None
     vector = None
     query = agent.prefixQuery("UNION ALL SELECT %s" % conf.uChar)
+    total = conf.uColsStop+1 - conf.uColsStart
+    index = 1
 
     for count in range(conf.uColsStart, conf.uColsStop+1):
         if Backend.getIdentifiedDbms() in FROM_TABLE and query.endswith(FROM_TABLE[Backend.getIdentifiedDbms()]):
@@ -112,7 +114,7 @@ def __unionTestByCharBruteforce(comment, place, parameter, value, prefix, suffix
             query += FROM_TABLE[Backend.getIdentifiedDbms()]
 
         status = "%d/%d" % (count, conf.uColsStop)
-        debugMsg = "testing %s columns (%d%%)" % (status, round(100.0*count/conf.uColsStop))
+        debugMsg = "testing %s columns (%d%%)" % (status, round(100.0*index/total))
         logger.debug(debugMsg)
 
         validPayload, vector = __unionConfirm(comment, place, parameter, value, prefix, suffix, count)
@@ -120,6 +122,8 @@ def __unionTestByCharBruteforce(comment, place, parameter, value, prefix, suffix
         if validPayload:
             break
 
+        index += 1
+
     clearConsoleLine(True)
 
     return validPayload, vector