diff --git a/Library/Homebrew/dev-cmd/bump-formula-pr.rb b/Library/Homebrew/dev-cmd/bump-formula-pr.rb
index f4bcff17db..e9f87bc454 100644
--- a/Library/Homebrew/dev-cmd/bump-formula-pr.rb
+++ b/Library/Homebrew/dev-cmd/bump-formula-pr.rb
@@ -392,7 +392,7 @@ module Homebrew
     resource = Resource.new
     resource.url(url, specs)
     resource.owner = Resource.new(formula.name)
-    forced_version = new_version && new_version != resource.version
+    forced_version = new_version && new_version != resource.version.to_s
     resource.version = new_version if forced_version
     odie "Couldn't identify version, specify it using `--version=`." if resource.version.blank?
     [resource.fetch, forced_version]