diff --git a/testing/DHT_test.c b/testing/DHT_test.c
index 588450e2..f1940614 100644
--- a/testing/DHT_test.c
+++ b/testing/DHT_test.c
@@ -60,11 +60,11 @@ void print_clientlist()
         }
         p_ip = close_clientlist[i].ip_port;
         printf("\nIP: %u.%u.%u.%u Port: %u",p_ip.ip.c[0],p_ip.ip.c[1],p_ip.ip.c[2],p_ip.ip.c[3],ntohs(p_ip.port));
-        printf("\nTimestamp: %u", close_clientlist[i].timestamp);
-        printf("\nLast pinged: %u\n", close_clientlist[i].last_pinged);
+        printf("\nTimestamp: %llu",(long long unsigned int) close_clientlist[i].timestamp);
+        printf("\nLast pinged: %llu\n",(long long unsigned int) close_clientlist[i].last_pinged);
         p_ip = close_clientlist[i].ret_ip_port;
         printf("OUR IP: %u.%u.%u.%u Port: %u\n",p_ip.ip.c[0],p_ip.ip.c[1],p_ip.ip.c[2],p_ip.ip.c[3],ntohs(p_ip.port));
-        printf("Timestamp: %u\n", close_clientlist[i].ret_timestamp);
+        printf("Timestamp: %llu\n",(long long unsigned int) close_clientlist[i].ret_timestamp);
     }  
 }
 
@@ -93,11 +93,11 @@ void print_friendlist()
             }
             p_ip = friends_list[k].client_list[i].ip_port;
             printf("\nIP: %u.%u.%u.%u:%u",p_ip.ip.c[0],p_ip.ip.c[1],p_ip.ip.c[2],p_ip.ip.c[3],ntohs(p_ip.port));
-            printf("\nTimestamp: %u", friends_list[k].client_list[i].timestamp);
-            printf("\nLast pinged: %u\n", friends_list[k].client_list[i].last_pinged);
+            printf("\nTimestamp: %llu",(long long unsigned int) friends_list[k].client_list[i].timestamp);
+            printf("\nLast pinged: %llu\n",(long long unsigned int) friends_list[k].client_list[i].last_pinged);
             p_ip = friends_list[k].client_list[i].ret_ip_port;
             printf("ret IP: %u.%u.%u.%u:%u\n",p_ip.ip.c[0],p_ip.ip.c[1],p_ip.ip.c[2],p_ip.ip.c[3],ntohs(p_ip.port));
-            printf("Timestamp: %u\n", friends_list[k].client_list[i].ret_timestamp);
+            printf("Timestamp: %llu\n", (long long unsigned int)friends_list[k].client_list[i].ret_timestamp);
         }
     }
 }