diff --git a/rarchdb/rarchdb.c b/rarchdb/rarchdb.c
index e4c7c709b9..1489448c08 100644
--- a/rarchdb/rarchdb.c
+++ b/rarchdb/rarchdb.c
@@ -86,7 +86,13 @@ int rarchdb_create(int fd, rarchdb_value_provider value_provider, void *ctx)
    rarchdb_write_metadata(fd, &md);
    lseek(fd, root, SEEK_SET);
    write(fd, &header, sizeof(header));
-   printf("Created DB with %llu entries\n", item_count);
+   printf(
+#ifdef _WIN32
+   "Created DB with %I64u entries\n"
+#else
+   "Created DB with %llu entries\n"
+#endif
+   ,(unsigned long long)item_count);
    return 0;
 }
 
diff --git a/rarchdb/rmsgpack_dom.c b/rarchdb/rmsgpack_dom.c
index 31493a0038..8d9bc5c7c8 100644
--- a/rarchdb/rmsgpack_dom.c
+++ b/rarchdb/rmsgpack_dom.c
@@ -265,10 +265,18 @@ void rmsgpack_dom_value_print(struct rmsgpack_dom_value *obj)
             printf("false");
          break;
       case RDT_INT:
-         printf("%lld", obj->int_);
+#ifdef _WIN32
+         printf("%I64d", (signed long long)obj->int_);
+#else
+         printf("%lld", (signed long long)obj->int_);
+#endif
          break;
       case RDT_UINT:
-         printf("%llu", obj->uint_);
+#ifdef _WIN32
+         printf("%I64u", (unsigned long long)obj->uint_);
+#else
+         printf("%llu",  (unsigned long long)obj->uint_);
+#endif
          break;
       case RDT_STRING:
          printf("\"%s\"", obj->string.buff);