diff --git a/src/message.c b/src/message.c
index 84b848d..632618a 100644
--- a/src/message.c
+++ b/src/message.c
@@ -66,6 +66,8 @@ ssize_t skipstone_message_pack(void *message,
 
                 memcpy((uint8_t *)message + offset, value, sz);
 
+                offset += sz;
+
                 break;
             }