diff --git a/src/server.c b/src/server.c
index cc335ebd..bac5d400 100644
--- a/src/server.c
+++ b/src/server.c
@@ -3247,11 +3247,11 @@ sds genRedisInfoString(char *section) {
             "allocator_frag_ratio:%.2f\r\n"
             "allocator_frag_bytes:%zu\r\n"
             "allocator_rss_ratio:%.2f\r\n"
-            "allocator_rss_bytes:%zu\r\n"
+            "allocator_rss_bytes:%zd\r\n"
             "rss_overhead_ratio:%.2f\r\n"
-            "rss_overhead_bytes:%zu\r\n"
+            "rss_overhead_bytes:%zd\r\n"
             "mem_fragmentation_ratio:%.2f\r\n"
-            "mem_fragmentation_bytes:%zu\r\n"
+            "mem_fragmentation_bytes:%zd\r\n"
             "mem_not_counted_for_evict:%zu\r\n"
             "mem_replication_backlog:%zu\r\n"
             "mem_clients_slaves:%zu\r\n"
diff --git a/src/server.h b/src/server.h
index 86d6e2e4..f7c34862 100644
--- a/src/server.h
+++ b/src/server.h
@@ -864,11 +864,11 @@ struct redisMemOverhead {
     float dataset_perc;
     float peak_perc;
     float total_frag;
-    size_t total_frag_bytes;
+    ssize_t total_frag_bytes;
     float allocator_frag;
-    size_t allocator_frag_bytes;
+    ssize_t allocator_frag_bytes;
     float allocator_rss;
-    size_t allocator_rss_bytes;
+    ssize_t allocator_rss_bytes;
     float rss_extra;
     size_t rss_extra_bytes;
     size_t num_dbs;