diff --git a/migration/ram.c b/migration/ram.c
index 41cc530d9d..069b6e30bc 100644
--- a/migration/ram.c
+++ b/migration/ram.c
@@ -913,10 +913,8 @@ static void migration_update_rates(RAMState *rs, int64_t end_time)
         unencoded_size = (xbzrle_counters.pages - rs->xbzrle_pages_prev) *
                          TARGET_PAGE_SIZE;
         encoded_size = xbzrle_counters.bytes - rs->xbzrle_bytes_prev;
-        if (xbzrle_counters.pages == rs->xbzrle_pages_prev) {
+        if (xbzrle_counters.pages == rs->xbzrle_pages_prev || !encoded_size) {
             xbzrle_counters.encoding_rate = 0;
-        } else if (!encoded_size) {
-            xbzrle_counters.encoding_rate = UINT64_MAX;
         } else {
             xbzrle_counters.encoding_rate = unencoded_size / encoded_size;
         }