diff --git a/Dangerfile b/Dangerfile
index bfbe3a62899..cc598f7c5cf 100644
--- a/Dangerfile
+++ b/Dangerfile
@@ -1,4 +1,4 @@
-if git.lines_of_code > 500
+if github.pr_json && (github.pr_json["additions"] || 0) > 250 || (github.pr_json["deletions"] || 0) > 250
   warn("This pull request is big! We prefer smaller PRs whenever possible, as they are easier to review. Can this be split into a few smaller PRs?")
 end