Use printf %zu specifier to print private_dirty.

1 files changed, 1 insertions, 1 deletions

diff --git a/src/aof.c b/src/aof.c
index 2a29f72fb..dcbcc62e1 100644
--- a/src/aof.c
+++ b/src/aof.c
@@ -970,7 +970,7 @@ int rewriteAppendOnlyFileBackground(void) {
 
             if (private_dirty) {
                 redisLog(REDIS_NOTICE,
-                    "AOF rewrite: %lu MB of memory used by copy-on-write",
+                    "AOF rewrite: %zu MB of memory used by copy-on-write",
                     private_dirty/(1024*1024));
             }
             exitFromChild(0);