diff --git a/src/redis.c b/src/redis.c
index 4b0ad72e..f34b648f 100644
--- a/src/redis.c
+++ b/src/redis.c
@@ -1482,24 +1482,28 @@ void adjustOpenFilesLimit(void) {
                     redisLog(REDIS_WARNING,"Your current 'ulimit -n' "
                         "of %llu is not enough for Redis to start. "
                         "Please increase your open file limit to at least "
-                        "%llu. Exiting.", oldlimit, maxfiles);
+                        "%llu. Exiting.",
+                        (unsigned long long) oldlimit,
+                        (unsigned long long) maxfiles);
                     exit(1);
                 }
                 redisLog(REDIS_WARNING,"You requested maxclients of %d "
                     "requiring at least %llu max file descriptors.",
-                    old_maxclients, maxfiles);
+                    old_maxclients,
+                    (unsigned long long) maxfiles);
                 redisLog(REDIS_WARNING,"Redis can't set maximum open files "
                     "to %llu because of OS error: %s.",
-                    maxfiles, strerror(setrlimit_error));
+                    (unsigned long long) maxfiles, strerror(setrlimit_error));
                 redisLog(REDIS_WARNING,"Current maximum open files is %llu. "
                     "maxclients has been reduced to %d to compensate for "
                     "low ulimit. "
                     "If you need higher maxclients increase 'ulimit -n'.",
-                    oldlimit, server.maxclients);
+                    (unsigned long long) oldlimit, server.maxclients);
             } else {
                 redisLog(REDIS_NOTICE,"Increased maximum number of open files "
                     "to %llu (it was originally set to %llu).",
-                    maxfiles, oldlimit);
+                    (unsigned long long) maxfiles,
+                    (unsigned long long) oldlimit);
             }
         }
     }