diff --git a/lib/core/agent.py b/lib/core/agent.py
index 58230e1e4..fe7bc335c 100644
--- a/lib/core/agent.py
+++ b/lib/core/agent.py
@@ -416,7 +416,7 @@ class Agent(object):
 
         prefixRegex = r"(?:\s+(?:FIRST|SKIP)\s+\d+)*"
         fieldsSelectTop = re.search(r"\ASELECT\s+TOP\s+[\d]+\s+(.+?)\s+FROM", query, re.I)
-        fieldsSelectRownum = re.search(r"SELECT\s+([^()]+?),\s*ROWNUM AS LIMIT FROM", query, re.I)
+        fieldsSelectRownum = re.search(r"\ASELECT\s+([^()]+?),\s*ROWNUM AS LIMIT FROM", query, re.I)
         fieldsSelectDistinct = re.search(r"\ASELECT%s\s+DISTINCT\((.+?)\)\s+FROM" % prefixRegex, query, re.I)
         fieldsSelectCase = re.search(r"\ASELECT%s\s+(\(CASE WHEN\s+.+\s+END\))" % prefixRegex, query, re.I)
         fieldsSelectFrom = re.search(r"\ASELECT%s\s+(.+?)\s+FROM " % prefixRegex, query, re.I)