diff --git a/engine.cc b/engine.cc
index fde718c..1dd1182 100644
--- a/engine.cc
+++ b/engine.cc
@@ -336,8 +336,6 @@ void Engine::regexp() {
               subs[i] = substring_start;
             }
 
-            free(ovector);
-
             if(config.reverse) {
               value = subs[0];
               key   = subs[1];