diff --git a/src/utils/regex.cc b/src/utils/regex.cc
index 1bc1987f..7cf660e8 100644
--- a/src/utils/regex.cc
+++ b/src/utils/regex.cc
@@ -52,7 +52,7 @@ int regex_search(const std::string& s, SMatch *match,
         s.size(), 0, 0, ovector, OVECCOUNT) > 0;
 
     if (ret > 0) {
-        match->match = std::string(s, ovector[2], ovector[3] - ovector[2]);
+        match->match = std::string(s, ovector[ret-1], ovector[ret] - ovector[ret-1]);
         match->size_ = ret;
     }