diff --git a/src/server.cpp b/src/server.cpp
index ece3bce63..c9ac73e9f 100644
--- a/src/server.cpp
+++ b/src/server.cpp
@@ -5828,7 +5828,7 @@ sds genRedisInfoString(const char *section) {
             "storage_provider:%s\r\n"
             "available_system_memory:%s\r\n"
             "maxstorage:%llu\r\n"
-            "storage_used:%llu\r\n",
+            "storage_used:%lu\r\n",
             zmalloc_used,
             hmem,
             g_pserver->cron_malloc_stats.process_rss,