diff --git a/plugins/manticoresearch/index.py b/plugins/manticoresearch/index.py
index 49f957b32..0c64520d5 100755
--- a/plugins/manticoresearch/index.py
+++ b/plugins/manticoresearch/index.py
@@ -253,7 +253,7 @@ def getMysqlPort():
     content = mw.readFile(path)
     rep = r'listen\s*=\s*(.*):mysql'
     conf = re.search(rep, content)
-    port_line = conf.groups()[1]
+    port_line = conf.groups()[0]
     return port_line.split(":")[1]
 
 def getHttpPort():