diff --git a/src/modsecurity.cc b/src/modsecurity.cc
index 65b35763..5560d794 100644
--- a/src/modsecurity.cc
+++ b/src/modsecurity.cc
@@ -196,10 +196,9 @@ void ModSecurity::serverLog(void *data, std::shared_ptr<RuleMessage> rm) {
     }
 
     if (m_logProperties & TextLogProperty) {
-        char *d = strdup(rm->log().c_str());
-        const void *a = static_cast<const void *>(d);
+        std::string &&d = rm->log();
+        const void *a = static_cast<const void *>(d.c_str());
         m_logCb(data, a);
-        free(d);
         return;
     }