diff --git a/owlps-aggregator/owlps-aggregatord.c b/owlps-aggregator/owlps-aggregatord.c
index ecc3db7..ea1e843 100644
--- a/owlps-aggregator/owlps-aggregatord.c
+++ b/owlps-aggregator/owlps-aggregatord.c
@@ -451,11 +451,6 @@ int read_loop(int sockfd)
   struct sockaddr_in client; // UDP client structure
   socklen_t client_len = sizeof(client) ; // Size of clients
   owl_captured_request request ; // Message read on the socket
-  char // Return values of
-    mobile_ip_str[INET_ADDRSTRLEN], // inet_ntop()
-    // and owl_timestamp_to_string():
-    request_time_str[OWL_TIMESTAMP_STRLEN],
-    start_time_str[OWL_TIMESTAMP_STRLEN] ;
 
   while (owl_run)
     {
@@ -481,11 +476,24 @@ int read_loop(int sockfd)
 
       if (VERBOSE_REQUESTS)
         {
+          char // Return values of
+            mobile_ip_str[INET_ADDRSTRLEN], // inet_ntop()
+            // and owl_timestamp_to_string():
+            request_time_str[OWL_TIMESTAMP_STRLEN],
+            start_time_str[OWL_TIMESTAMP_STRLEN],
+            ap_mac_addr_str[OWL_ETHER_ADDR_STRLEN],
+            mobile_mac_addr_str[OWL_ETHER_ADDR_STRLEN] ;
+
           inet_ntop(AF_INET, &request.mobile_ip_addr_bytes,
                     mobile_ip_str, INET_ADDRSTRLEN) ;
           owl_timestamp_to_string(request_time_str,
                                   request.request_time) ;
           owl_timestamp_to_string(start_time_str, request.start_time) ;
+          owl_mac_bytes_to_string_r(request.ap_mac_addr_bytes,
+                                    ap_mac_addr_str) ;
+          owl_mac_bytes_to_string_r(request.mobile_mac_addr_bytes,
+                                    mobile_mac_addr_str) ;
+
           fprintf(stderr,
                   "\n"
                   "*** Request received from AP ***\n"
@@ -502,8 +510,8 @@ int read_loop(int sockfd)
                   "\tDirection: %"PRIu8"\n"
                   ,
                   request.type,
-                  owl_mac_bytes_to_string(request.ap_mac_addr_bytes),
-                  owl_mac_bytes_to_string(request.mobile_mac_addr_bytes),
+                  ap_mac_addr_str,
+                  mobile_mac_addr_str,
                   mobile_ip_str,
                   request_time_str,
                   start_time_str,