diff --git a/lib/core/settings.py b/lib/core/settings.py
index 3a79a20a2..bac36ae21 100644
--- a/lib/core/settings.py
+++ b/lib/core/settings.py
@@ -19,7 +19,7 @@ from lib.core.enums import OS
 from lib.core.revision import getRevisionNumber
 
 # sqlmap version (<major>.<minor>.<month>.<monthly commit>)
-VERSION = "1.0.5.56"
+VERSION = "1.0.5.57"
 REVISION = getRevisionNumber()
 STABLE = VERSION.count('.') <= 2
 VERSION_STRING = "sqlmap/%s#%s" % (VERSION, "stable" if STABLE else "dev")
diff --git a/lib/techniques/union/test.py b/lib/techniques/union/test.py
index 92f09ab23..26021c517 100644
--- a/lib/techniques/union/test.py
+++ b/lib/techniques/union/test.py
@@ -53,7 +53,7 @@ def _findUnionCharCount(comment, place, parameter, value, prefix, suffix, where=
             query = agent.suffixQuery(query, suffix=suffix, comment=comment)
             payload = agent.payload(newValue=query, place=place, parameter=parameter, where=where)
             page, headers = Request.queryPage(payload, place=place, content=True, raise404=False)
-            return not re.search(r"(warning|error|order by|failed)", page or "", re.I) and comparison(page, headers) or re.search(r"data types cannot be compared or sorted", page or "", re.I)
+            return not any(re.search(_, page or "", re.I) and not re.search(_, kb.originalPage or "", re.I) for _ in ("warning", "error", "order by", "failed")) and comparison(page, headers) or re.search(r"data types cannot be compared or sorted", page or "", re.I)
 
         if _orderByTest(1) and not _orderByTest(randomInt()):
             infoMsg = "ORDER BY technique appears to be usable. "