diff --git a/main.cc b/main.cc
index 3242c3d..cf77f74 100644
--- a/main.cc
+++ b/main.cc
@@ -157,6 +157,7 @@
 }
 
 void SetupLogging() {
+  string log_file;
   logging::LoggingSettings log_settings;
   log_settings.lock_log = logging::DONT_LOCK_LOG_FILE;
   log_settings.delete_old = logging::APPEND_TO_OLD_LOG_FILE;
@@ -166,7 +167,7 @@
     log_settings.log_file = nullptr;
     log_settings.logging_dest = logging::LOG_TO_SYSTEM_DEBUG_LOG;
   } else {
-    const string log_file = SetupLogFile("/var/log");
+    log_file = SetupLogFile("/var/log");
     log_settings.log_file = log_file.c_str();
     log_settings.logging_dest = logging::LOG_TO_FILE;
   }